$(document).ready(function() {
    var date = new Date();
      var d = date.getDate();
      var m = date.getMonth();
      var y = date.getFullYear();
      /*  className colors
      className: default(transparent), important(red), chill(pink), success(green), info(blue)
      */			  
      /* initialize the external events
      -----------------------------------------------------------------*/	
      $('#external-events div.external-event').each(function() {		
          // create an Event Object (http://arshaw.com/fullcalendar/docs/event_data/Event_Object/)
          // it doesn't need to have a start or end
          var eventObject = {
              title: $.trim($(this).text()) // use the element's text as the event title
          };			
          // store the Event Object in the DOM element so we can get to it later
          $(this).data('eventObject', eventObject);			
          // make the event draggable using jQuery UI
          $(this).draggable({
              zIndex: 999,
              revert: true,      // will cause the event to go back to its
              revertDuration: 0  //  original position after the drag
          });
          
      });	
      /************** initialize the calendar *********************
      -----------------------------------------------------------------*/		
      var calendar =  $('#calendar').fullCalendar({
          header: {
              left: 'title',
              center: 'agendaDay,agendaWeek,month',
              right: 'prev,next today'
          },
          editable: true,
          firstDay: 1, //  1(Monday) this can be changed to 0(Sunday) for the USA system
          selectable: true,
          defaultView: 'month',			
          axisFormat: 'h:mm',
          columnFormat: {
              month: 'ddd',    // Mon
              week: 'ddd d', // Mon 7
              day: 'dddd M/d',  // Monday 9/7
              agendaDay: 'dddd d'
          },
          titleFormat: {
              month: 'MMMM yyyy', // September 2009
              week: "MMMM yyyy", // September 2009
              day: 'MMMM yyyy'  // Tuesday, Sep 8, 2009
          },
          allDaySlot: false,//cambie a true
          selectHelper: true,
          dayClick: function (date, allDay, jsEvent, view) {
              if (allDay) {
                  // Clicked on the day number 
                  calendar.fullCalendar('changeView', 'agendaDay'/* or 'basicDay' */)
                      .fullCalendar('gotoDate', date.getFullYear(), date.getMonth(), date.getDate());
              }
          },
          select: function (startDate, endDate, allDay) {
              if (!allDay) {
                  swal({
                      input: 'text',
                      title: 'Event title:',
                      showCancelButton: true
                  }).then((result) => {
                      swal.resetDefaults();
                      console.log("result: " + result);
                      if (result) {
                          calendar.fullCalendar('renderEvent',
                              {
                                  title: result,
                                  start: startDate,
                                  end: endDate,
                                  allDay: allDay
                              },
                              true // make the event "stick"
                          ); 
                          swal({
                              type: 'success',
                              title: 'Agended!',
                              html: 'Event title: ' + result
                          }); 
                      } else {
                          swal({
                              type: 'warning',
                              title: 'Not Agended!',
                              html: 'Title is empty! '
                          })       
                      }
                      calendar.fullCalendar('unselect');
                                   
                  });
              }                 
          },
          droppable: true, // this allows things to be dropped onto the calendar !!!
          drop: function(date, allDay) { // this function is called when something is dropped
          
              // retrieve the dropped element's stored Event Object
              var originalEventObject = $(this).data('eventObject');
              
              // we need to copy it, so that multiple events don't have a reference to the same object
              var copiedEventObject = $.extend({}, originalEventObject);
              
              // assign it the date that was reported
              copiedEventObject.start = date;
              copiedEventObject.allDay = allDay;
              
              // render the event on the calendar
              // the last `true` argument determines if the event "sticks" (http://arshaw.com/fullcalendar/docs/event_rendering/renderEvent/)
              $('#calendar').fullCalendar('renderEvent', copiedEventObject, true);
              
              // is the "remove after drop" checkbox checked?
              if ($('#drop-remove').is(':checked')) {
                  // if so, remove the element from the "Draggable Events" list
                  $(this).remove();
              }
              
          },
          
          events: [
              {
                  title: 'All Day Event',
                  start: new Date(y, m, 1)
              },
              {
                  id: 999,
                  title: 'Repeating Event',
                  start: new Date(y, m, d-3, 16, 0),
                  allDay: false,
                  className: 'info'
              },
              {
                  id: 999,
                  title: 'Repeating Event',
                  start: new Date(y, m, d+4, 16, 0),
                  allDay: false,
                  className: 'info'
              },
              {
                  title: 'Meeting',
                  start: new Date(y, m, d, 10, 30),
                  allDay: false,
                  className: 'important'
              },
              {
                  title: 'Lunch',
                  start: new Date(y, m, d, 12, 0),
                  end: new Date(y, m, d, 14, 0),
                  allDay: false,
                  className: 'important'
              },
              {
                  title: 'Birthday Party',
                  start: new Date(y, m, d+1, 19, 0),
                  end: new Date(y, m, d+1, 22, 30),
                  allDay: false,
              },
              {
                  title: 'Click for Google',
                  start: new Date(y, m, 28),
                  end: new Date(y, m, 29),
                  url: 'http://google.com/',
                  className: 'success'
              }
          ],			
      });
      
      
  });
/*!
* FullCalendar v1.6.4
* Docs & License: http://arshaw.com/fullcalendar/
* (c) 2013 Adam Shaw
*/

/*
* Use fullcalendar.css for basic styling.
* For event drag & drop, requires jQuery UI draggable.
* For event resizing, requires jQuery UI resizable.
*/

(function($, undefined) {


;;

var defaults = {

  // display
  defaultView: 'month',
  aspectRatio: 1.35,
  header: {
      left: 'title',
      center: '',
      right: 'today prev,next'
  },
  weekends: true,
  weekNumbers: false,
  weekNumberCalculation: 'iso',
  weekNumberTitle: 'W',
  
  // editing
  //editable: false,
  //disableDragging: false,
  //disableResizing: false,
  
  allDayDefault: true,
  ignoreTimezone: true,
  
  // event ajax
  lazyFetching: true,
  startParam: 'start',
  endParam: 'end',
  
  // time formats
  titleFormat: {
      month: 'MMMM yyyy',
      week: "MMM d[ yyyy]{ '&#8212;'[ MMM] d yyyy}",
      day: 'dddd, MMM d, yyyy'
  },
  columnFormat: {
      month: 'ddd',
      week: 'ddd M/d',
      day: 'dddd M/d'
  },
  timeFormat: { // for event elements
      '': 'h(:mm)t' // default
  },
  
  // locale
  isRTL: false,
  firstDay: 0,
  monthNames: ['January','February','March','April','May','June','July','August','September','October','November','December'],
  monthNamesShort: ['Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec'],
  dayNames: ['Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday'],
  dayNamesShort: ['Sun','Mon','Tue','Wed','Thu','Fri','Sat'],
  buttonText: {
      prev: "<span class='fc-text-arrow'>&lsaquo;</span>",
      next: "<span class='fc-text-arrow'>&rsaquo;</span>",
      prevYear: "<span class='fc-text-arrow'>&laquo;</span>",
      nextYear: "<span class='fc-text-arrow'>&raquo;</span>",
      today: 'today',
      month: 'month',
      week: 'week',
      day: 'day'
  },
  
  // jquery-ui theming
  theme: false,
  buttonIcons: {
      prev: 'circle-triangle-w',
      next: 'circle-triangle-e'
  },
  
  //selectable: false,
  unselectAuto: true,
  
  dropAccept: '*',
  
  handleWindowResize: true
  
};

// right-to-left defaults
var rtlDefaults = {
  header: {
      left: 'next,prev today',
      center: '',
      right: 'title'
  },
  buttonText: {
      prev: "<span class='fc-text-arrow'>&rsaquo;</span>",
      next: "<span class='fc-text-arrow'>&lsaquo;</span>",
      prevYear: "<span class='fc-text-arrow'>&raquo;</span>",
      nextYear: "<span class='fc-text-arrow'>&laquo;</span>"
  },
  buttonIcons: {
      prev: 'circle-triangle-e',
      next: 'circle-triangle-w'
  }
};



;;

var fc = $.fullCalendar = { version: "1.6.4" };
var fcViews = fc.views = {};


$.fn.fullCalendar = function(options) {


  // method calling
  if (typeof options == 'string') {
      var args = Array.prototype.slice.call(arguments, 1);
      var res;
      this.each(function() {
          var calendar = $.data(this, 'fullCalendar');
          if (calendar && $.isFunction(calendar[options])) {
              var r = calendar[options].apply(calendar, args);
              if (res === undefined) {
                  res = r;
              }
              if (options == 'destroy') {
                  $.removeData(this, 'fullCalendar');
              }
          }
      });
      if (res !== undefined) {
          return res;
      }
      return this;
  }

  options = options || {};
  
  // would like to have this logic in EventManager, but needs to happen before options are recursively extended
  var eventSources = options.eventSources || [];
  delete options.eventSources;
  if (options.events) {
      eventSources.push(options.events);
      delete options.events;
  }
  

  options = $.extend(true, {},
      defaults,
      (options.isRTL || options.isRTL===undefined && defaults.isRTL) ? rtlDefaults : {},
      options
  );
  
  
  this.each(function(i, _element) {
      var element = $(_element);
      var calendar = new Calendar(element, options, eventSources);
      element.data('fullCalendar', calendar); // TODO: look into memory leak implications
      calendar.render();
  });
  
  
  return this;
  
};


// function for adding/overriding defaults
function setDefaults(d) {
  $.extend(true, defaults, d);
}



;;


function Calendar(element, options, eventSources) {
  var t = this;
  
  
  // exports
  t.options = options;
  t.render = render;
  t.destroy = destroy;
  t.refetchEvents = refetchEvents;
  t.reportEvents = reportEvents;
  t.reportEventChange = reportEventChange;
  t.rerenderEvents = rerenderEvents;
  t.changeView = changeView;
  t.select = select;
  t.unselect = unselect;
  t.prev = prev;
  t.next = next;
  t.prevYear = prevYear;
  t.nextYear = nextYear;
  t.today = today;
  t.gotoDate = gotoDate;
  t.incrementDate = incrementDate;
  t.formatDate = function(format, date) { return formatDate(format, date, options) };
  t.formatDates = function(format, date1, date2) { return formatDates(format, date1, date2, options) };
  t.getDate = getDate;
  t.getView = getView;
  t.option = option;
  t.trigger = trigger;
  
  
  // imports
  EventManager.call(t, options, eventSources);
  var isFetchNeeded = t.isFetchNeeded;
  var fetchEvents = t.fetchEvents;
  
  
  // locals
  var _element = element[0];
  var header;
  var headerElement;
  var content;
  var tm; // for making theme classes
  var currentView;
  var elementOuterWidth;
  var suggestedViewHeight;
  var resizeUID = 0;
  var ignoreWindowResize = 0;
  var date = new Date();
  var events = [];
  var _dragElement;
  
  
  
  /* Main Rendering
  -----------------------------------------------------------------------------*/
  
  
  setYMD(date, options.year, options.month, options.date);
  
  
  function render(inc) {
      if (!content) {
          initialRender();
      }
      else if (elementVisible()) {
          // mainly for the public API
          calcSize();
          _renderView(inc);
      }
  }
  
  
  function initialRender() {
      tm = options.theme ? 'ui' : 'fc';
      element.addClass('fc');
      if (options.isRTL) {
          element.addClass('fc-rtl');
      }
      else {
          element.addClass('fc-ltr');
      }
      if (options.theme) {
          element.addClass('ui-widget');
      }

      content = $("<div class='fc-content' style='position:relative'/>")
          .prependTo(element);

      header = new Header(t, options);
      headerElement = header.render();
      if (headerElement) {
          element.prepend(headerElement);
      }

      changeView(options.defaultView);

      if (options.handleWindowResize) {
          $(window).resize(windowResize);
      }

      // needed for IE in a 0x0 iframe, b/c when it is resized, never triggers a windowResize
      if (!bodyVisible()) {
          lateRender();
      }
  }
  
  
  // called when we know the calendar couldn't be rendered when it was initialized,
  // but we think it's ready now
  function lateRender() {
      setTimeout(function() { // IE7 needs this so dimensions are calculated correctly
          if (!currentView.start && bodyVisible()) { // !currentView.start makes sure this never happens more than once
              renderView();
          }
      },0);
  }
  
  
  function destroy() {

      if (currentView) {
          trigger('viewDestroy', currentView, currentView, currentView.element);
          currentView.triggerEventDestroy();
      }

      $(window).unbind('resize', windowResize);

      header.destroy();
      content.remove();
      element.removeClass('fc fc-rtl ui-widget');
  }
  
  
  function elementVisible() {
      return element.is(':visible');
  }
  
  
  function bodyVisible() {
      return $('body').is(':visible');
  }
  
  
  
  /* View Rendering
  -----------------------------------------------------------------------------*/
  

  function changeView(newViewName) {
      if (!currentView || newViewName != currentView.name) {
          _changeView(newViewName);
      }
  }


  function _changeView(newViewName) {
      ignoreWindowResize++;

      if (currentView) {
          trigger('viewDestroy', currentView, currentView, currentView.element);
          unselect();
          currentView.triggerEventDestroy(); // trigger 'eventDestroy' for each event
          freezeContentHeight();
          currentView.element.remove();
          header.deactivateButton(currentView.name);
      }

      header.activateButton(newViewName);

      currentView = new fcViews[newViewName](
          $("<div class='fc-view fc-view-" + newViewName + "' style='position:relative'/>")
              .appendTo(content),
          t // the calendar object
      );

      renderView();
      unfreezeContentHeight();

      ignoreWindowResize--;
  }


  function renderView(inc) {
      if (
          !currentView.start || // never rendered before
          inc || date < currentView.start || date >= currentView.end // or new date range
      ) {
          if (elementVisible()) {
              _renderView(inc);
          }
      }
  }


  function _renderView(inc) { // assumes elementVisible
      ignoreWindowResize++;

      if (currentView.start) { // already been rendered?
          trigger('viewDestroy', currentView, currentView, currentView.element);
          unselect();
          clearEvents();
      }

      freezeContentHeight();
      currentView.render(date, inc || 0); // the view's render method ONLY renders the skeleton, nothing else
      setSize();
      unfreezeContentHeight();
      (currentView.afterRender || noop)();

      updateTitle();
      updateTodayButton();

      trigger('viewRender', currentView, currentView, currentView.element);
      currentView.trigger('viewDisplay', _element); // deprecated

      ignoreWindowResize--;

      getAndRenderEvents();
  }
  
  

  /* Resizing
  -----------------------------------------------------------------------------*/
  
  
  function updateSize() {
      if (elementVisible()) {
          unselect();
          clearEvents();
          calcSize();
          setSize();
          renderEvents();
      }
  }
  
  
  function calcSize() { // assumes elementVisible
      if (options.contentHeight) {
          suggestedViewHeight = options.contentHeight;
      }
      else if (options.height) {
          suggestedViewHeight = options.height - (headerElement ? headerElement.height() : 0) - vsides(content);
      }
      else {
          suggestedViewHeight = Math.round(content.width() / Math.max(options.aspectRatio, .5));
      }
  }
  
  
  function setSize() { // assumes elementVisible

      if (suggestedViewHeight === undefined) {
          calcSize(); // for first time
              // NOTE: we don't want to recalculate on every renderView because
              // it could result in oscillating heights due to scrollbars.
      }

      ignoreWindowResize++;
      currentView.setHeight(suggestedViewHeight);
      currentView.setWidth(content.width());
      ignoreWindowResize--;

      elementOuterWidth = element.outerWidth();
  }
  
  
  function windowResize() {
      if (!ignoreWindowResize) {
          if (currentView.start) { // view has already been rendered
              var uid = ++resizeUID;
              setTimeout(function() { // add a delay
                  if (uid == resizeUID && !ignoreWindowResize && elementVisible()) {
                      if (elementOuterWidth != (elementOuterWidth = element.outerWidth())) {
                          ignoreWindowResize++; // in case the windowResize callback changes the height
                          updateSize();
                          currentView.trigger('windowResize', _element);
                          ignoreWindowResize--;
                      }
                  }
              }, 200);
          }else{
              // calendar must have been initialized in a 0x0 iframe that has just been resized
              lateRender();
          }
      }
  }
  
  
  
  /* Event Fetching/Rendering
  -----------------------------------------------------------------------------*/
  // TODO: going forward, most of this stuff should be directly handled by the view


  function refetchEvents() { // can be called as an API method
      clearEvents();
      fetchAndRenderEvents();
  }


  function rerenderEvents(modifiedEventID) { // can be called as an API method
      clearEvents();
      renderEvents(modifiedEventID);
  }


  function renderEvents(modifiedEventID) { // TODO: remove modifiedEventID hack
      if (elementVisible()) {
          currentView.setEventData(events); // for View.js, TODO: unify with renderEvents
          currentView.renderEvents(events, modifiedEventID); // actually render the DOM elements
          currentView.trigger('eventAfterAllRender');
      }
  }


  function clearEvents() {
      currentView.triggerEventDestroy(); // trigger 'eventDestroy' for each event
      currentView.clearEvents(); // actually remove the DOM elements
      currentView.clearEventData(); // for View.js, TODO: unify with clearEvents
  }
  

  function getAndRenderEvents() {
      if (!options.lazyFetching || isFetchNeeded(currentView.visStart, currentView.visEnd)) {
          fetchAndRenderEvents();
      }
      else {
          renderEvents();
      }
  }


  function fetchAndRenderEvents() {
      fetchEvents(currentView.visStart, currentView.visEnd);
          // ... will call reportEvents
          // ... which will call renderEvents
  }

  
  // called when event data arrives
  function reportEvents(_events) {
      events = _events;
      renderEvents();
  }


  // called when a single event's data has been changed
  function reportEventChange(eventID) {
      rerenderEvents(eventID);
  }



  /* Header Updating
  -----------------------------------------------------------------------------*/


  function updateTitle() {
      header.updateTitle(currentView.title);
  }


  function updateTodayButton() {
      var today = new Date();
      if (today >= currentView.start && today < currentView.end) {
          header.disableButton('today');
      }
      else {
          header.enableButton('today');
      }
  }
  


  /* Selection
  -----------------------------------------------------------------------------*/
  

  function select(start, end, allDay) {
      currentView.select(start, end, allDay===undefined ? true : allDay);
  }
  

  function unselect() { // safe to be called before renderView
      if (currentView) {
          currentView.unselect();
      }
  }
  
  
  
  /* Date
  -----------------------------------------------------------------------------*/
  
  
  function prev() {
      renderView(-1);
  }
  
  
  function next() {
      renderView(1);
  }
  
  
  function prevYear() {
      addYears(date, -1);
      renderView();
  }
  
  
  function nextYear() {
      addYears(date, 1);
      renderView();
  }
  
  
  function today() {
      date = new Date();
      renderView();
  }
  
  
  function gotoDate(year, month, dateOfMonth) {
      if (year instanceof Date) {
          date = cloneDate(year); // provided 1 argument, a Date
      }else{
          setYMD(date, year, month, dateOfMonth);
      }
      renderView();
  }
  
  
  function incrementDate(years, months, days) {
      if (years !== undefined) {
          addYears(date, years);
      }
      if (months !== undefined) {
          addMonths(date, months);
      }
      if (days !== undefined) {
          addDays(date, days);
      }
      renderView();
  }
  
  
  function getDate() {
      return cloneDate(date);
  }



  /* Height "Freezing"
  -----------------------------------------------------------------------------*/


  function freezeContentHeight() {
      content.css({
          width: '100%',
          height: content.height(),
          overflow: 'hidden'
      });
  }


  function unfreezeContentHeight() {
      content.css({
          width: '',
          height: '',
          overflow: ''
      });
  }
  
  
  
  /* Misc
  -----------------------------------------------------------------------------*/
  
  
  function getView() {
      return currentView;
  }
  
  
  function option(name, value) {
      if (value === undefined) {
          return options[name];
      }
      if (name == 'height' || name == 'contentHeight' || name == 'aspectRatio') {
          options[name] = value;
          updateSize();
      }
  }
  
  
  function trigger(name, thisObj) {
      if (options[name]) {
          return options[name].apply(
              thisObj || _element,
              Array.prototype.slice.call(arguments, 2)
          );
      }
  }
  
  
  
  /* External Dragging
  ------------------------------------------------------------------------*/
  
  if (options.droppable) {
      $(document)
          .bind('dragstart', function(ev, ui) {
              var _e = ev.target;
              var e = $(_e);
              if (!e.parents('.fc').length) { // not already inside a calendar
                  var accept = options.dropAccept;
                  if ($.isFunction(accept) ? accept.call(_e, e) : e.is(accept)) {
                      _dragElement = _e;
                      currentView.dragStart(_dragElement, ev, ui);
                  }
              }
          })
          .bind('dragstop', function(ev, ui) {
              if (_dragElement) {
                  currentView.dragStop(_dragElement, ev, ui);
                  _dragElement = null;
              }
          });
  }
  

}

;;

function Header(calendar, options) {
  var t = this;
  
  
  // exports
  t.render = render;
  t.destroy = destroy;
  t.updateTitle = updateTitle;
  t.activateButton = activateButton;
  t.deactivateButton = deactivateButton;
  t.disableButton = disableButton;
  t.enableButton = enableButton;
  
  
  // locals
  var element = $([]);
  var tm;
  


  function render() {
      tm = options.theme ? 'ui' : 'fc';
      var sections = options.header;
      if (sections) {
          element = $("<table class='fc-header' style='width:100%'/>")
              .append(
                  $("<tr/>")
                      .append(renderSection('left'))
                      .append(renderSection('center'))
                      .append(renderSection('right'))
              );
          return element;
      }
  }
  
  
  function destroy() {
      element.remove();
  }
  
  
  function renderSection(position) {
      var e = $("<td class='fc-header-" + position + "'/>");
      var buttonStr = options.header[position];
      if (buttonStr) {
          $.each(buttonStr.split(' '), function(i) {
              if (i > 0) {
                  e.append("<span class='fc-header-space'/>");
              }
              var prevButton;
              $.each(this.split(','), function(j, buttonName) {
                  if (buttonName == 'title') {
                      e.append("<span class='fc-header-title'><h2>&nbsp;</h2></span>");
                      if (prevButton) {
                          prevButton.addClass(tm + '-corner-right');
                      }
                      prevButton = null;
                  }else{
                      var buttonClick;
                      if (calendar[buttonName]) {
                          buttonClick = calendar[buttonName]; // calendar method
                      }
                      else if (fcViews[buttonName]) {
                          buttonClick = function() {
                              button.removeClass(tm + '-state-hover'); // forget why
                              calendar.changeView(buttonName);
                          };
                      }
                      if (buttonClick) {
                          var icon = options.theme ? smartProperty(options.buttonIcons, buttonName) : null; // why are we using smartProperty here?
                          var text = smartProperty(options.buttonText, buttonName); // why are we using smartProperty here?
                          var button = $(
                              "<span class='fc-button fc-button-" + buttonName + " " + tm + "-state-default'>" +
                                  (icon ?
                                      "<span class='fc-icon-wrap'>" +
                                          "<span class='ui-icon ui-icon-" + icon + "'/>" +
                                      "</span>" :
                                      text
                                      ) +
                              "</span>"
                              )
                              .click(function() {
                                  if (!button.hasClass(tm + '-state-disabled')) {
                                      buttonClick();
                                  }
                              })
                              .mousedown(function() {
                                  button
                                      .not('.' + tm + '-state-active')
                                      .not('.' + tm + '-state-disabled')
                                      .addClass(tm + '-state-down');
                              })
                              .mouseup(function() {
                                  button.removeClass(tm + '-state-down');
                              })
                              .hover(
                                  function() {
                                      button
                                          .not('.' + tm + '-state-active')
                                          .not('.' + tm + '-state-disabled')
                                          .addClass(tm + '-state-hover');
                                  },
                                  function() {
                                      button
                                          .removeClass(tm + '-state-hover')
                                          .removeClass(tm + '-state-down');
                                  }
                              )
                              .appendTo(e);
                          disableTextSelection(button);
                          if (!prevButton) {
                              button.addClass(tm + '-corner-left');
                          }
                          prevButton = button;
                      }
                  }
              });
              if (prevButton) {
                  prevButton.addClass(tm + '-corner-right');
              }
          });
      }
      return e;
  }
  
  
  function updateTitle(html) {
      element.find('h2')
          .html(html);
  }
  
  
  function activateButton(buttonName) {
      element.find('span.fc-button-' + buttonName)
          .addClass(tm + '-state-active');
  }
  
  
  function deactivateButton(buttonName) {
      element.find('span.fc-button-' + buttonName)
          .removeClass(tm + '-state-active');
  }
  
  
  function disableButton(buttonName) {
      element.find('span.fc-button-' + buttonName)
          .addClass(tm + '-state-disabled');
  }
  
  
  function enableButton(buttonName) {
      element.find('span.fc-button-' + buttonName)
          .removeClass(tm + '-state-disabled');
  }


}

;;

fc.sourceNormalizers = [];
fc.sourceFetchers = [];

var ajaxDefaults = {
  dataType: 'json',
  cache: false
};

var eventGUID = 1;


function EventManager(options, _sources) {
  var t = this;
  
  
  // exports
  t.isFetchNeeded = isFetchNeeded;
  t.fetchEvents = fetchEvents;
  t.addEventSource = addEventSource;
  t.removeEventSource = removeEventSource;
  t.updateEvent = updateEvent;
  t.renderEvent = renderEvent;
  t.removeEvents = removeEvents;
  t.clientEvents = clientEvents;
  t.normalizeEvent = normalizeEvent;
  
  
  // imports
  var trigger = t.trigger;
  var getView = t.getView;
  var reportEvents = t.reportEvents;
  
  
  // locals
  var stickySource = { events: [] };
  var sources = [ stickySource ];
  var rangeStart, rangeEnd;
  var currentFetchID = 0;
  var pendingSourceCnt = 0;
  var loadingLevel = 0;
  var cache = [];
  
  
  for (var i=0; i<_sources.length; i++) {
      _addEventSource(_sources[i]);
  }
  
  
  
  /* Fetching
  -----------------------------------------------------------------------------*/
  
  
  function isFetchNeeded(start, end) {
      return !rangeStart || start < rangeStart || end > rangeEnd;
  }
  
  
  function fetchEvents(start, end) {
      rangeStart = start;
      rangeEnd = end;
      cache = [];
      var fetchID = ++currentFetchID;
      var len = sources.length;
      pendingSourceCnt = len;
      for (var i=0; i<len; i++) {
          fetchEventSource(sources[i], fetchID);
      }
  }
  
  
  function fetchEventSource(source, fetchID) {
      _fetchEventSource(source, function(events) {
          if (fetchID == currentFetchID) {
              if (events) {

                  if (options.eventDataTransform) {
                      events = $.map(events, options.eventDataTransform);
                  }
                  if (source.eventDataTransform) {
                      events = $.map(events, source.eventDataTransform);
                  }
                  // TODO: this technique is not ideal for static array event sources.
                  //  For arrays, we'll want to process all events right in the beginning, then never again.
              
                  for (var i=0; i<events.length; i++) {
                      events[i].source = source;
                      normalizeEvent(events[i]);
                  }
                  cache = cache.concat(events);
              }
              pendingSourceCnt--;
              if (!pendingSourceCnt) {
                  reportEvents(cache);
              }
          }
      });
  }
  
  
  function _fetchEventSource(source, callback) {
      var i;
      var fetchers = fc.sourceFetchers;
      var res;
      for (i=0; i<fetchers.length; i++) {
          res = fetchers[i](source, rangeStart, rangeEnd, callback);
          if (res === true) {
              // the fetcher is in charge. made its own async request
              return;
          }
          else if (typeof res == 'object') {
              // the fetcher returned a new source. process it
              _fetchEventSource(res, callback);
              return;
          }
      }
      var events = source.events;
      if (events) {
          if ($.isFunction(events)) {
              pushLoading();
              events(cloneDate(rangeStart), cloneDate(rangeEnd), function(events) {
                  callback(events);
                  popLoading();
              });
          }
          else if ($.isArray(events)) {
              callback(events);
          }
          else {
              callback();
          }
      }else{
          var url = source.url;
          if (url) {
              var success = source.success;
              var error = source.error;
              var complete = source.complete;

              // retrieve any outbound GET/POST $.ajax data from the options
              var customData;
              if ($.isFunction(source.data)) {
                  // supplied as a function that returns a key/value object
                  customData = source.data();
              }
              else {
                  // supplied as a straight key/value object
                  customData = source.data;
              }

              // use a copy of the custom data so we can modify the parameters
              // and not affect the passed-in object.
              var data = $.extend({}, customData || {});

              var startParam = firstDefined(source.startParam, options.startParam);
              var endParam = firstDefined(source.endParam, options.endParam);
              if (startParam) {
                  data[startParam] = Math.round(+rangeStart / 1000);
              }
              if (endParam) {
                  data[endParam] = Math.round(+rangeEnd / 1000);
              }

              pushLoading();
              $.ajax($.extend({}, ajaxDefaults, source, {
                  data: data,
                  success: function(events) {
                      events = events || [];
                      var res = applyAll(success, this, arguments);
                      if ($.isArray(res)) {
                          events = res;
                      }
                      callback(events);
                  },
                  error: function() {
                      applyAll(error, this, arguments);
                      callback();
                  },
                  complete: function() {
                      applyAll(complete, this, arguments);
                      popLoading();
                  }
              }));
          }else{
              callback();
          }
      }
  }
  
  
  
  /* Sources
  -----------------------------------------------------------------------------*/
  

  function addEventSource(source) {
      source = _addEventSource(source);
      if (source) {
          pendingSourceCnt++;
          fetchEventSource(source, currentFetchID); // will eventually call reportEvents
      }
  }
  
  
  function _addEventSource(source) {
      if ($.isFunction(source) || $.isArray(source)) {
          source = { events: source };
      }
      else if (typeof source == 'string') {
          source = { url: source };
      }
      if (typeof source == 'object') {
          normalizeSource(source);
          sources.push(source);
          return source;
      }
  }
  

  function removeEventSource(source) {
      sources = $.grep(sources, function(src) {
          return !isSourcesEqual(src, source);
      });
      // remove all client events from that source
      cache = $.grep(cache, function(e) {
          return !isSourcesEqual(e.source, source);
      });
      reportEvents(cache);
  }
  
  
  
  /* Manipulation
  -----------------------------------------------------------------------------*/
  
  
  function updateEvent(event) { // update an existing event
      var i, len = cache.length, e,
          defaultEventEnd = getView().defaultEventEnd, // getView???
          startDelta = event.start - event._start,
          endDelta = event.end ?
              (event.end - (event._end || defaultEventEnd(event))) // event._end would be null if event.end
              : 0;                                                      // was null and event was just resized
      for (i=0; i<len; i++) {
          e = cache[i];
          if (e._id == event._id && e != event) {
              e.start = new Date(+e.start + startDelta);
              if (event.end) {
                  if (e.end) {
                      e.end = new Date(+e.end + endDelta);
                  }else{
                      e.end = new Date(+defaultEventEnd(e) + endDelta);
                  }
              }else{
                  e.end = null;
              }
              e.title = event.title;
              e.url = event.url;
              e.allDay = event.allDay;
              e.className = event.className;
              e.editable = event.editable;
              e.color = event.color;
              e.backgroundColor = event.backgroundColor;
              e.borderColor = event.borderColor;
              e.textColor = event.textColor;
              normalizeEvent(e);
          }
      }
      normalizeEvent(event);
      reportEvents(cache);
  }
  
  
  function renderEvent(event, stick) {
      normalizeEvent(event);
      if (!event.source) {
          if (stick) {
              stickySource.events.push(event);
              event.source = stickySource;
          }
          cache.push(event);
      }
      reportEvents(cache);
  }
  
  
  function removeEvents(filter) {
      if (!filter) { // remove all
          cache = [];
          // clear all array sources
          for (var i=0; i<sources.length; i++) {
              if ($.isArray(sources[i].events)) {
                  sources[i].events = [];
              }
          }
      }else{
          if (!$.isFunction(filter)) { // an event ID
              var id = filter + '';
              filter = function(e) {
                  return e._id == id;
              };
          }
          cache = $.grep(cache, filter, true);
          // remove events from array sources
          for (var i=0; i<sources.length; i++) {
              if ($.isArray(sources[i].events)) {
                  sources[i].events = $.grep(sources[i].events, filter, true);
              }
          }
      }
      reportEvents(cache);
  }
  
  
  function clientEvents(filter) {
      if ($.isFunction(filter)) {
          return $.grep(cache, filter);
      }
      else if (filter) { // an event ID
          filter += '';
          return $.grep(cache, function(e) {
              return e._id == filter;
          });
      }
      return cache; // else, return all
  }
  
  
  
  /* Loading State
  -----------------------------------------------------------------------------*/
  
  
  function pushLoading() {
      if (!loadingLevel++) {
          trigger('loading', null, true, getView());
      }
  }
  
  
  function popLoading() {
      if (!--loadingLevel) {
          trigger('loading', null, false, getView());
      }
  }
  
  
  
  /* Event Normalization
  -----------------------------------------------------------------------------*/
  
  
  function normalizeEvent(event) {
      var source = event.source || {};
      var ignoreTimezone = firstDefined(source.ignoreTimezone, options.ignoreTimezone);
      event._id = event._id || (event.id === undefined ? '_fc' + eventGUID++ : event.id + '');
      if (event.date) {
          if (!event.start) {
              event.start = event.date;
          }
          delete event.date;
      }
      event._start = cloneDate(event.start = parseDate(event.start, ignoreTimezone));
      event.end = parseDate(event.end, ignoreTimezone);
      if (event.end && event.end <= event.start) {
          event.end = null;
      }
      event._end = event.end ? cloneDate(event.end) : null;
      if (event.allDay === undefined) {
          event.allDay = firstDefined(source.allDayDefault, options.allDayDefault);
      }
      if (event.className) {
          if (typeof event.className == 'string') {
              event.className = event.className.split(/\s+/);
          }
      }else{
          event.className = [];
      }
      // TODO: if there is no start date, return false to indicate an invalid event
  }
  
  
  
  /* Utils
  ------------------------------------------------------------------------------*/
  
  
  function normalizeSource(source) {
      if (source.className) {
          // TODO: repeat code, same code for event classNames
          if (typeof source.className == 'string') {
              source.className = source.className.split(/\s+/);
          }
      }else{
          source.className = [];
      }
      var normalizers = fc.sourceNormalizers;
      for (var i=0; i<normalizers.length; i++) {
          normalizers[i](source);
      }
  }
  
  
  function isSourcesEqual(source1, source2) {
      return source1 && source2 && getSourcePrimitive(source1) == getSourcePrimitive(source2);
  }
  
  
  function getSourcePrimitive(source) {
      return ((typeof source == 'object') ? (source.events || source.url) : '') || source;
  }


}

;;


fc.addDays = addDays;
fc.cloneDate = cloneDate;
fc.parseDate = parseDate;
fc.parseISO8601 = parseISO8601;
fc.parseTime = parseTime;
fc.formatDate = formatDate;
fc.formatDates = formatDates;



/* Date Math
-----------------------------------------------------------------------------*/

var dayIDs = ['sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat'],
  DAY_MS = 86400000,
  HOUR_MS = 3600000,
  MINUTE_MS = 60000;
  

function addYears(d, n, keepTime) {
  d.setFullYear(d.getFullYear() + n);
  if (!keepTime) {
      clearTime(d);
  }
  return d;
}


function addMonths(d, n, keepTime) { // prevents day overflow/underflow
  if (+d) { // prevent infinite looping on invalid dates
      var m = d.getMonth() + n,
          check = cloneDate(d);
      check.setDate(1);
      check.setMonth(m);
      d.setMonth(m);
      if (!keepTime) {
          clearTime(d);
      }
      while (d.getMonth() != check.getMonth()) {
          d.setDate(d.getDate() + (d < check ? 1 : -1));
      }
  }
  return d;
}


function addDays(d, n, keepTime) { // deals with daylight savings
  if (+d) {
      var dd = d.getDate() + n,
          check = cloneDate(d);
      check.setHours(9); // set to middle of day
      check.setDate(dd);
      d.setDate(dd);
      if (!keepTime) {
          clearTime(d);
      }
      fixDate(d, check);
  }
  return d;
}


function fixDate(d, check) { // force d to be on check's YMD, for daylight savings purposes
  if (+d) { // prevent infinite looping on invalid dates
      while (d.getDate() != check.getDate()) {
          d.setTime(+d + (d < check ? 1 : -1) * HOUR_MS);
      }
  }
}


function addMinutes(d, n) {
  d.setMinutes(d.getMinutes() + n);
  return d;
}


function clearTime(d) {
  d.setHours(0);
  d.setMinutes(0);
  d.setSeconds(0); 
  d.setMilliseconds(0);
  return d;
}


function cloneDate(d, dontKeepTime) {
  if (dontKeepTime) {
      return clearTime(new Date(+d));
  }
  return new Date(+d);
}


function zeroDate() { // returns a Date with time 00:00:00 and dateOfMonth=1
  var i=0, d;
  do {
      d = new Date(1970, i++, 1);
  } while (d.getHours()); // != 0
  return d;
}


function dayDiff(d1, d2) { // d1 - d2
  return Math.round((cloneDate(d1, true) - cloneDate(d2, true)) / DAY_MS);
}


function setYMD(date, y, m, d) {
  if (y !== undefined && y != date.getFullYear()) {
      date.setDate(1);
      date.setMonth(0);
      date.setFullYear(y);
  }
  if (m !== undefined && m != date.getMonth()) {
      date.setDate(1);
      date.setMonth(m);
  }
  if (d !== undefined) {
      date.setDate(d);
  }
}



/* Date Parsing
-----------------------------------------------------------------------------*/


function parseDate(s, ignoreTimezone) { // ignoreTimezone defaults to true
  if (typeof s == 'object') { // already a Date object
      return s;
  }
  if (typeof s == 'number') { // a UNIX timestamp
      return new Date(s * 1000);
  }
  if (typeof s == 'string') {
      if (s.match(/^\d+(\.\d+)?$/)) { // a UNIX timestamp
          return new Date(parseFloat(s) * 1000);
      }
      if (ignoreTimezone === undefined) {
          ignoreTimezone = true;
      }
      return parseISO8601(s, ignoreTimezone) || (s ? new Date(s) : null);
  }
  // TODO: never return invalid dates (like from new Date(<string>)), return null instead
  return null;
}


function parseISO8601(s, ignoreTimezone) { // ignoreTimezone defaults to false
  // derived from http://delete.me.uk/2005/03/iso8601.html
  // TODO: for a know glitch/feature, read tests/issue_206_parseDate_dst.html
  var m = s.match(/^([0-9]{4})(-([0-9]{2})(-([0-9]{2})([T ]([0-9]{2}):([0-9]{2})(:([0-9]{2})(\.([0-9]+))?)?(Z|(([-+])([0-9]{2})(:?([0-9]{2}))?))?)?)?)?$/);
  if (!m) {
      return null;
  }
  var date = new Date(m[1], 0, 1);
  if (ignoreTimezone || !m[13]) {
      var check = new Date(m[1], 0, 1, 9, 0);
      if (m[3]) {
          date.setMonth(m[3] - 1);
          check.setMonth(m[3] - 1);
      }
      if (m[5]) {
          date.setDate(m[5]);
          check.setDate(m[5]);
      }
      fixDate(date, check);
      if (m[7]) {
          date.setHours(m[7]);
      }
      if (m[8]) {
          date.setMinutes(m[8]);
      }
      if (m[10]) {
          date.setSeconds(m[10]);
      }
      if (m[12]) {
          date.setMilliseconds(Number("0." + m[12]) * 1000);
      }
      fixDate(date, check);
  }else{
      date.setUTCFullYear(
          m[1],
          m[3] ? m[3] - 1 : 0,
          m[5] || 1
      );
      date.setUTCHours(
          m[7] || 0,
          m[8] || 0,
          m[10] || 0,
          m[12] ? Number("0." + m[12]) * 1000 : 0
      );
      if (m[14]) {
          var offset = Number(m[16]) * 60 + (m[18] ? Number(m[18]) : 0);
          offset *= m[15] == '-' ? 1 : -1;
          date = new Date(+date + (offset * 60 * 1000));
      }
  }
  return date;
}


function parseTime(s) { // returns minutes since start of day
  if (typeof s == 'number') { // an hour
      return s * 60;
  }
  if (typeof s == 'object') { // a Date object
      return s.getHours() * 60 + s.getMinutes();
  }
  var m = s.match(/(\d+)(?::(\d+))?\s*(\w+)?/);
  if (m) {
      var h = parseInt(m[1], 10);
      if (m[3]) {
          h %= 12;
          if (m[3].toLowerCase().charAt(0) == 'p') {
              h += 12;
          }
      }
      return h * 60 + (m[2] ? parseInt(m[2], 10) : 0);
  }
}



/* Date Formatting
-----------------------------------------------------------------------------*/
// TODO: use same function formatDate(date, [date2], format, [options])


function formatDate(date, format, options) {
  return formatDates(date, null, format, options);
}


function formatDates(date1, date2, format, options) {
  options = options || defaults;
  var date = date1,
      otherDate = date2,
      i, len = format.length, c,
      i2, formatter,
      res = '';
  for (i=0; i<len; i++) {
      c = format.charAt(i);
      if (c == "'") {
          for (i2=i+1; i2<len; i2++) {
              if (format.charAt(i2) == "'") {
                  if (date) {
                      if (i2 == i+1) {
                          res += "'";
                      }else{
                          res += format.substring(i+1, i2);
                      }
                      i = i2;
                  }
                  break;
              }
          }
      }
      else if (c == '(') {
          for (i2=i+1; i2<len; i2++) {
              if (format.charAt(i2) == ')') {
                  var subres = formatDate(date, format.substring(i+1, i2), options);
                  if (parseInt(subres.replace(/\D/, ''), 10)) {
                      res += subres;
                  }
                  i = i2;
                  break;
              }
          }
      }
      else if (c == '[') {
          for (i2=i+1; i2<len; i2++) {
              if (format.charAt(i2) == ']') {
                  var subformat = format.substring(i+1, i2);
                  var subres = formatDate(date, subformat, options);
                  if (subres != formatDate(otherDate, subformat, options)) {
                      res += subres;
                  }
                  i = i2;
                  break;
              }
          }
      }
      else if (c == '{') {
          date = date2;
          otherDate = date1;
      }
      else if (c == '}') {
          date = date1;
          otherDate = date2;
      }
      else {
          for (i2=len; i2>i; i2--) {
              if (formatter = dateFormatters[format.substring(i, i2)]) {
                  if (date) {
                      res += formatter(date, options);
                  }
                  i = i2 - 1;
                  break;
              }
          }
          if (i2 == i) {
              if (date) {
                  res += c;
              }
          }
      }
  }
  return res;
};


var dateFormatters = {
  s	: function(d)	{ return d.getSeconds() },
  ss	: function(d)	{ return zeroPad(d.getSeconds()) },
  m	: function(d)	{ return d.getMinutes() },
  mm	: function(d)	{ return zeroPad(d.getMinutes()) },
  h	: function(d)	{ return d.getHours() % 12 || 12 },
  hh	: function(d)	{ return zeroPad(d.getHours() % 12 || 12) },
  H	: function(d)	{ return d.getHours() },
  HH	: function(d)	{ return zeroPad(d.getHours()) },
  d	: function(d)	{ return d.getDate() },
  dd	: function(d)	{ return zeroPad(d.getDate()) },
  ddd	: function(d,o)	{ return o.dayNamesShort[d.getDay()] },
  dddd: function(d,o)	{ return o.dayNames[d.getDay()] },
  M	: function(d)	{ return d.getMonth() + 1 },
  MM	: function(d)	{ return zeroPad(d.getMonth() + 1) },
  MMM	: function(d,o)	{ return o.monthNamesShort[d.getMonth()] },
  MMMM: function(d,o)	{ return o.monthNames[d.getMonth()] },
  yy	: function(d)	{ return (d.getFullYear()+'').substring(2) },
  yyyy: function(d)	{ return d.getFullYear() },
  t	: function(d)	{ return d.getHours() < 12 ? 'a' : 'p' },
  tt	: function(d)	{ return d.getHours() < 12 ? 'am' : 'pm' },
  T	: function(d)	{ return d.getHours() < 12 ? 'A' : 'P' },
  TT	: function(d)	{ return d.getHours() < 12 ? 'AM' : 'PM' },
  u	: function(d)	{ return formatDate(d, "yyyy-MM-dd'T'HH:mm:ss'Z'") },
  S	: function(d)	{
      var date = d.getDate();
      if (date > 10 && date < 20) {
          return 'th';
      }
      return ['st', 'nd', 'rd'][date%10-1] || 'th';
  },
  w   : function(d, o) { // local
      return o.weekNumberCalculation(d);
  },
  W   : function(d) { // ISO
      return iso8601Week(d);
  }
};
fc.dateFormatters = dateFormatters;


/* thanks jQuery UI (https://github.com/jquery/jquery-ui/blob/master/ui/jquery.ui.datepicker.js)
* 
* Set as calculateWeek to determine the week of the year based on the ISO 8601 definition.
* `date` - the date to get the week for
* `number` - the number of the week within the year that contains this date
*/
function iso8601Week(date) {
  var time;
  var checkDate = new Date(date.getTime());

  // Find Thursday of this week starting on Monday
  checkDate.setDate(checkDate.getDate() + 4 - (checkDate.getDay() || 7));

  time = checkDate.getTime();
  checkDate.setMonth(0); // Compare with Jan 1
  checkDate.setDate(1);
  return Math.floor(Math.round((time - checkDate) / 86400000) / 7) + 1;
}


;;

fc.applyAll = applyAll;


/* Event Date Math
-----------------------------------------------------------------------------*/


function exclEndDay(event) {
  if (event.end) {
      return _exclEndDay(event.end, event.allDay);
  }else{
      return addDays(cloneDate(event.start), 1);
  }
}


function _exclEndDay(end, allDay) {
  end = cloneDate(end);
  return allDay || end.getHours() || end.getMinutes() ? addDays(end, 1) : clearTime(end);
  // why don't we check for seconds/ms too?
}



/* Event Element Binding
-----------------------------------------------------------------------------*/


function lazySegBind(container, segs, bindHandlers) {
  container.unbind('mouseover').mouseover(function(ev) {
      var parent=ev.target, e,
          i, seg;
      while (parent != this) {
          e = parent;
          parent = parent.parentNode;
      }
      if ((i = e._fci) !== undefined) {
          e._fci = undefined;
          seg = segs[i];
          bindHandlers(seg.event, seg.element, seg);
          $(ev.target).trigger(ev);
      }
      ev.stopPropagation();
  });
}



/* Element Dimensions
-----------------------------------------------------------------------------*/


function setOuterWidth(element, width, includeMargins) {
  for (var i=0, e; i<element.length; i++) {
      e = $(element[i]);
      e.width(Math.max(0, width - hsides(e, includeMargins)));
  }
}


function setOuterHeight(element, height, includeMargins) {
  for (var i=0, e; i<element.length; i++) {
      e = $(element[i]);
      e.height(Math.max(0, height - vsides(e, includeMargins)));
  }
}


function hsides(element, includeMargins) {
  return hpadding(element) + hborders(element) + (includeMargins ? hmargins(element) : 0);
}


function hpadding(element) {
  return (parseFloat($.css(element[0], 'paddingLeft', true)) || 0) +
         (parseFloat($.css(element[0], 'paddingRight', true)) || 0);
}


function hmargins(element) {
  return (parseFloat($.css(element[0], 'marginLeft', true)) || 0) +
         (parseFloat($.css(element[0], 'marginRight', true)) || 0);
}


function hborders(element) {
  return (parseFloat($.css(element[0], 'borderLeftWidth', true)) || 0) +
         (parseFloat($.css(element[0], 'borderRightWidth', true)) || 0);
}


function vsides(element, includeMargins) {
  return vpadding(element) +  vborders(element) + (includeMargins ? vmargins(element) : 0);
}


function vpadding(element) {
  return (parseFloat($.css(element[0], 'paddingTop', true)) || 0) +
         (parseFloat($.css(element[0], 'paddingBottom', true)) || 0);
}


function vmargins(element) {
  return (parseFloat($.css(element[0], 'marginTop', true)) || 0) +
         (parseFloat($.css(element[0], 'marginBottom', true)) || 0);
}


function vborders(element) {
  return (parseFloat($.css(element[0], 'borderTopWidth', true)) || 0) +
         (parseFloat($.css(element[0], 'borderBottomWidth', true)) || 0);
}



/* Misc Utils
-----------------------------------------------------------------------------*/


//TODO: arraySlice
//TODO: isFunction, grep ?


function noop() { }


function dateCompare(a, b) {
  return a - b;
}


function arrayMax(a) {
  return Math.max.apply(Math, a);
}


function zeroPad(n) {
  return (n < 10 ? '0' : '') + n;
}


function smartProperty(obj, name) { // get a camel-cased/namespaced property of an object
  if (obj[name] !== undefined) {
      return obj[name];
  }
  var parts = name.split(/(?=[A-Z])/),
      i=parts.length-1, res;
  for (; i>=0; i--) {
      res = obj[parts[i].toLowerCase()];
      if (res !== undefined) {
          return res;
      }
  }
  return obj[''];
}


function htmlEscape(s) {
  return s.replace(/&/g, '&amp;')
      .replace(/</g, '&lt;')
      .replace(/>/g, '&gt;')
      .replace(/'/g, '&#039;')
      .replace(/"/g, '&quot;')
      .replace(/\n/g, '<br />');
}


function disableTextSelection(element) {
  element
      .attr('unselectable', 'on')
      .css('MozUserSelect', 'none')
      .bind('selectstart.ui', function() { return false; });
}


/*
function enableTextSelection(element) {
  element
      .attr('unselectable', 'off')
      .css('MozUserSelect', '')
      .unbind('selectstart.ui');
}
*/


function markFirstLast(e) {
  e.children()
      .removeClass('fc-first fc-last')
      .filter(':first-child')
          .addClass('fc-first')
      .end()
      .filter(':last-child')
          .addClass('fc-last');
}


function setDayID(cell, date) {
  cell.each(function(i, _cell) {
      _cell.className = _cell.className.replace(/^fc-\w*/, 'fc-' + dayIDs[date.getDay()]);
      // TODO: make a way that doesn't rely on order of classes
  });
}


function getSkinCss(event, opt) {
  var source = event.source || {};
  var eventColor = event.color;
  var sourceColor = source.color;
  var optionColor = opt('eventColor');
  var backgroundColor =
      event.backgroundColor ||
      eventColor ||
      source.backgroundColor ||
      sourceColor ||
      opt('eventBackgroundColor') ||
      optionColor;
  var borderColor =
      event.borderColor ||
      eventColor ||
      source.borderColor ||
      sourceColor ||
      opt('eventBorderColor') ||
      optionColor;
  var textColor =
      event.textColor ||
      source.textColor ||
      opt('eventTextColor');
  var statements = [];
  if (backgroundColor) {
      statements.push('background-color:' + backgroundColor);
  }
  if (borderColor) {
      statements.push('border-color:' + borderColor);
  }
  if (textColor) {
      statements.push('color:' + textColor);
  }
  return statements.join(';');
}


function applyAll(functions, thisObj, args) {
  if ($.isFunction(functions)) {
      functions = [ functions ];
  }
  if (functions) {
      var i;
      var ret;
      for (i=0; i<functions.length; i++) {
          ret = functions[i].apply(thisObj, args) || ret;
      }
      return ret;
  }
}


function firstDefined() {
  for (var i=0; i<arguments.length; i++) {
      if (arguments[i] !== undefined) {
          return arguments[i];
      }
  }
}


;;

fcViews.month = MonthView;

function MonthView(element, calendar) {
  var t = this;
  
  
  // exports
  t.render = render;
  
  
  // imports
  BasicView.call(t, element, calendar, 'month');
  var opt = t.opt;
  var renderBasic = t.renderBasic;
  var skipHiddenDays = t.skipHiddenDays;
  var getCellsPerWeek = t.getCellsPerWeek;
  var formatDate = calendar.formatDate;
  
  
  function render(date, delta) {

      if (delta) {
          addMonths(date, delta);
          date.setDate(1);
      }

      var firstDay = opt('firstDay');

      var start = cloneDate(date, true);
      start.setDate(1);

      var end = addMonths(cloneDate(start), 1);

      var visStart = cloneDate(start);
      addDays(visStart, -((visStart.getDay() - firstDay + 7) % 7));
      skipHiddenDays(visStart);

      var visEnd = cloneDate(end);
      addDays(visEnd, (7 - visEnd.getDay() + firstDay) % 7);
      skipHiddenDays(visEnd, -1, true);

      var colCnt = getCellsPerWeek();
      var rowCnt = Math.round(dayDiff(visEnd, visStart) / 7); // should be no need for Math.round

      if (opt('weekMode') == 'fixed') {
          addDays(visEnd, (6 - rowCnt) * 7); // add weeks to make up for it
          rowCnt = 6;
      }

      t.title = formatDate(start, opt('titleFormat'));

      t.start = start;
      t.end = end;
      t.visStart = visStart;
      t.visEnd = visEnd;

      renderBasic(rowCnt, colCnt, true);
  }
  
  
}

;;

fcViews.basicWeek = BasicWeekView;

function BasicWeekView(element, calendar) {
  var t = this;
  
  
  // exports
  t.render = render;
  
  
  // imports
  BasicView.call(t, element, calendar, 'basicWeek');
  var opt = t.opt;
  var renderBasic = t.renderBasic;
  var skipHiddenDays = t.skipHiddenDays;
  var getCellsPerWeek = t.getCellsPerWeek;
  var formatDates = calendar.formatDates;
  
  
  function render(date, delta) {

      if (delta) {
          addDays(date, delta * 7);
      }

      var start = addDays(cloneDate(date), -((date.getDay() - opt('firstDay') + 7) % 7));
      var end = addDays(cloneDate(start), 7);

      var visStart = cloneDate(start);
      skipHiddenDays(visStart);

      var visEnd = cloneDate(end);
      skipHiddenDays(visEnd, -1, true);

      var colCnt = getCellsPerWeek();

      t.start = start;
      t.end = end;
      t.visStart = visStart;
      t.visEnd = visEnd;

      t.title = formatDates(
          visStart,
          addDays(cloneDate(visEnd), -1),
          opt('titleFormat')
      );

      renderBasic(1, colCnt, false);
  }
  
  
}

;;

fcViews.basicDay = BasicDayView;


function BasicDayView(element, calendar) {
  var t = this;
  
  
  // exports
  t.render = render;
  
  
  // imports
  BasicView.call(t, element, calendar, 'basicDay');
  var opt = t.opt;
  var renderBasic = t.renderBasic;
  var skipHiddenDays = t.skipHiddenDays;
  var formatDate = calendar.formatDate;
  
  
  function render(date, delta) {

      if (delta) {
          addDays(date, delta);
      }
      skipHiddenDays(date, delta < 0 ? -1 : 1);

      var start = cloneDate(date, true);
      var end = addDays(cloneDate(start), 1);

      t.title = formatDate(date, opt('titleFormat'));

      t.start = t.visStart = start;
      t.end = t.visEnd = end;

      renderBasic(1, 1, false);
  }
  
  
}

;;

setDefaults({
  weekMode: 'fixed'
});


function BasicView(element, calendar, viewName) {
  var t = this;
  
  
  // exports
  t.renderBasic = renderBasic;
  t.setHeight = setHeight;
  t.setWidth = setWidth;
  t.renderDayOverlay = renderDayOverlay;
  t.defaultSelectionEnd = defaultSelectionEnd;
  t.renderSelection = renderSelection;
  t.clearSelection = clearSelection;
  t.reportDayClick = reportDayClick; // for selection (kinda hacky)
  t.dragStart = dragStart;
  t.dragStop = dragStop;
  t.defaultEventEnd = defaultEventEnd;
  t.getHoverListener = function() { return hoverListener };
  t.colLeft = colLeft;
  t.colRight = colRight;
  t.colContentLeft = colContentLeft;
  t.colContentRight = colContentRight;
  t.getIsCellAllDay = function() { return true };
  t.allDayRow = allDayRow;
  t.getRowCnt = function() { return rowCnt };
  t.getColCnt = function() { return colCnt };
  t.getColWidth = function() { return colWidth };
  t.getDaySegmentContainer = function() { return daySegmentContainer };
  
  
  // imports
  View.call(t, element, calendar, viewName);
  OverlayManager.call(t);
  SelectionManager.call(t);
  BasicEventRenderer.call(t);
  var opt = t.opt;
  var trigger = t.trigger;
  var renderOverlay = t.renderOverlay;
  var clearOverlays = t.clearOverlays;
  var daySelectionMousedown = t.daySelectionMousedown;
  var cellToDate = t.cellToDate;
  var dateToCell = t.dateToCell;
  var rangeToSegments = t.rangeToSegments;
  var formatDate = calendar.formatDate;
  
  
  // locals
  
  var table;
  var head;
  var headCells;
  var body;
  var bodyRows;
  var bodyCells;
  var bodyFirstCells;
  var firstRowCellInners;
  var firstRowCellContentInners;
  var daySegmentContainer;
  
  var viewWidth;
  var viewHeight;
  var colWidth;
  var weekNumberWidth;
  
  var rowCnt, colCnt;
  var showNumbers;
  var coordinateGrid;
  var hoverListener;
  var colPositions;
  var colContentPositions;
  
  var tm;
  var colFormat;
  var showWeekNumbers;
  var weekNumberTitle;
  var weekNumberFormat;
  
  
  
  /* Rendering
  ------------------------------------------------------------*/
  
  
  disableTextSelection(element.addClass('fc-grid'));
  
  
  function renderBasic(_rowCnt, _colCnt, _showNumbers) {
      rowCnt = _rowCnt;
      colCnt = _colCnt;
      showNumbers = _showNumbers;
      updateOptions();

      if (!body) {
          buildEventContainer();
      }

      buildTable();
  }
  
  
  function updateOptions() {
      tm = opt('theme') ? 'ui' : 'fc';
      colFormat = opt('columnFormat');

      // week # options. (TODO: bad, logic also in other views)
      showWeekNumbers = opt('weekNumbers');
      weekNumberTitle = opt('weekNumberTitle');
      if (opt('weekNumberCalculation') != 'iso') {
          weekNumberFormat = "w";
      }
      else {
          weekNumberFormat = "W";
      }
  }
  
  
  function buildEventContainer() {
      daySegmentContainer =
          $("<div class='fc-event-container' style='position:absolute;z-index:8;top:0;left:0'/>")
              .appendTo(element);
  }
  
  
  function buildTable() {
      var html = buildTableHTML();

      if (table) {
          table.remove();
      }
      table = $(html).appendTo(element);

      head = table.find('thead');
      headCells = head.find('.fc-day-header');
      body = table.find('tbody');
      bodyRows = body.find('tr');
      bodyCells = body.find('.fc-day');
      bodyFirstCells = bodyRows.find('td:first-child');

      firstRowCellInners = bodyRows.eq(0).find('.fc-day > div');
      firstRowCellContentInners = bodyRows.eq(0).find('.fc-day-content > div');
      
      markFirstLast(head.add(head.find('tr'))); // marks first+last tr/th's
      markFirstLast(bodyRows); // marks first+last td's
      bodyRows.eq(0).addClass('fc-first');
      bodyRows.filter(':last').addClass('fc-last');

      bodyCells.each(function(i, _cell) {
          var date = cellToDate(
              Math.floor(i / colCnt),
              i % colCnt
          );
          trigger('dayRender', t, date, $(_cell));
      });

      dayBind(bodyCells);
  }



  /* HTML Building
  -----------------------------------------------------------*/


  function buildTableHTML() {
      var html =
          "<table class='fc-border-separate' style='width:100%' cellspacing='0'>" +
          buildHeadHTML() +
          buildBodyHTML() +
          "</table>";

      return html;
  }


  function buildHeadHTML() {
      var headerClass = tm + "-widget-header";
      var html = '';
      var col;
      var date;

      html += "<thead><tr>";

      if (showWeekNumbers) {
          html +=
              "<th class='fc-week-number " + headerClass + "'>" +
              htmlEscape(weekNumberTitle) +
              "</th>";
      }

      for (col=0; col<colCnt; col++) {
          date = cellToDate(0, col);
          html +=
              "<th class='fc-day-header fc-" + dayIDs[date.getDay()] + " " + headerClass + "'>" +
              htmlEscape(formatDate(date, colFormat)) +
              "</th>";
      }

      html += "</tr></thead>";

      return html;
  }


  function buildBodyHTML() {
      var contentClass = tm + "-widget-content";
      var html = '';
      var row;
      var col;
      var date;

      html += "<tbody>";

      for (row=0; row<rowCnt; row++) {

          html += "<tr class='fc-week'>";

          if (showWeekNumbers) {
              date = cellToDate(row, 0);
              html +=
                  "<td class='fc-week-number " + contentClass + "'>" +
                  "<div>" +
                  htmlEscape(formatDate(date, weekNumberFormat)) +
                  "</div>" +
                  "</td>";
          }

          for (col=0; col<colCnt; col++) {
              date = cellToDate(row, col);
              html += buildCellHTML(date);
          }

          html += "</tr>";
      }

      html += "</tbody>";

      return html;
  }


  function buildCellHTML(date) {
      var contentClass = tm + "-widget-content";
      var month = t.start.getMonth();
      var today = clearTime(new Date());
      var html = '';
      var classNames = [
          'fc-day',
          'fc-' + dayIDs[date.getDay()],
          contentClass
      ];

      if (date.getMonth() != month) {
          classNames.push('fc-other-month');
      }
      if (+date == +today) {
          classNames.push(
              'fc-today',
              tm + '-state-highlight'
          );
      }
      else if (date < today) {
          classNames.push('fc-past');
      }
      else {
          classNames.push('fc-future');
      }

      html +=
          "<td" +
          " class='" + classNames.join(' ') + "'" +
          " data-date='" + formatDate(date, 'yyyy-MM-dd') + "'" +
          ">" +
          "<div>";

      if (showNumbers) {
          html += "<div class='fc-day-number'>" + date.getDate() + "</div>";
      }

      html +=
          "<div class='fc-day-content'>" +
          "<div style='position:relative'>&nbsp;</div>" +
          "</div>" +
          "</div>" +
          "</td>";

      return html;
  }



  /* Dimensions
  -----------------------------------------------------------*/
  
  
  function setHeight(height) {
      viewHeight = height;
      
      var bodyHeight = viewHeight - head.height();
      var rowHeight;
      var rowHeightLast;
      var cell;
          
      if (opt('weekMode') == 'variable') {
          rowHeight = rowHeightLast = Math.floor(bodyHeight / (rowCnt==1 ? 2 : 6));
      }else{
          rowHeight = Math.floor(bodyHeight / rowCnt);
          rowHeightLast = bodyHeight - rowHeight * (rowCnt-1);
      }
      
      bodyFirstCells.each(function(i, _cell) {
          if (i < rowCnt) {
              cell = $(_cell);
              cell.find('> div').css(
                  'min-height',
                  (i==rowCnt-1 ? rowHeightLast : rowHeight) - vsides(cell)
              );
          }
      });
      
  }
  
  
  function setWidth(width) {
      viewWidth = width;
      colPositions.clear();
      colContentPositions.clear();

      weekNumberWidth = 0;
      if (showWeekNumbers) {
          weekNumberWidth = head.find('th.fc-week-number').outerWidth();
      }

      colWidth = Math.floor((viewWidth - weekNumberWidth) / colCnt);
      setOuterWidth(headCells.slice(0, -1), colWidth);
  }
  
  
  
  /* Day clicking and binding
  -----------------------------------------------------------*/
  
  
  function dayBind(days) {
      days.click(dayClick)
          .mousedown(daySelectionMousedown);
  }
  
  
  function dayClick(ev) {
      if (!opt('selectable')) { // if selectable, SelectionManager will worry about dayClick
          var date = parseISO8601($(this).data('date'));
          trigger('dayClick', this, date, true, ev);
      }
  }
  
  
  
  /* Semi-transparent Overlay Helpers
  ------------------------------------------------------*/
  // TODO: should be consolidated with AgendaView's methods


  function renderDayOverlay(overlayStart, overlayEnd, refreshCoordinateGrid) { // overlayEnd is exclusive

      if (refreshCoordinateGrid) {
          coordinateGrid.build();
      }

      var segments = rangeToSegments(overlayStart, overlayEnd);

      for (var i=0; i<segments.length; i++) {
          var segment = segments[i];
          dayBind(
              renderCellOverlay(
                  segment.row,
                  segment.leftCol,
                  segment.row,
                  segment.rightCol
              )
          );
      }
  }

  
  function renderCellOverlay(row0, col0, row1, col1) { // row1,col1 is inclusive
      var rect = coordinateGrid.rect(row0, col0, row1, col1, element);
      return renderOverlay(rect, element);
  }
  
  
  
  /* Selection
  -----------------------------------------------------------------------*/
  
  
  function defaultSelectionEnd(startDate, allDay) {
      return cloneDate(startDate);
  }
  
  
  function renderSelection(startDate, endDate, allDay) {
      renderDayOverlay(startDate, addDays(cloneDate(endDate), 1), true); // rebuild every time???
  }
  
  
  function clearSelection() {
      clearOverlays();
  }
  
  
  function reportDayClick(date, allDay, ev) {
      var cell = dateToCell(date);
      var _element = bodyCells[cell.row*colCnt + cell.col];
      trigger('dayClick', _element, date, allDay, ev);
  }
  
  
  
  /* External Dragging
  -----------------------------------------------------------------------*/
  
  
  function dragStart(_dragElement, ev, ui) {
      hoverListener.start(function(cell) {
          clearOverlays();
          if (cell) {
              renderCellOverlay(cell.row, cell.col, cell.row, cell.col);
          }
      }, ev);
  }
  
  
  function dragStop(_dragElement, ev, ui) {
      var cell = hoverListener.stop();
      clearOverlays();
      if (cell) {
          var d = cellToDate(cell);
          trigger('drop', _dragElement, d, true, ev, ui);
      }
  }
  
  
  
  /* Utilities
  --------------------------------------------------------*/
  
  
  function defaultEventEnd(event) {
      return cloneDate(event.start);
  }
  
  
  coordinateGrid = new CoordinateGrid(function(rows, cols) {
      var e, n, p;
      headCells.each(function(i, _e) {
          e = $(_e);
          n = e.offset().left;
          if (i) {
              p[1] = n;
          }
          p = [n];
          cols[i] = p;
      });
      p[1] = n + e.outerWidth();
      bodyRows.each(function(i, _e) {
          if (i < rowCnt) {
              e = $(_e);
              n = e.offset().top;
              if (i) {
                  p[1] = n;
              }
              p = [n];
              rows[i] = p;
          }
      });
      p[1] = n + e.outerHeight();
  });
  
  
  hoverListener = new HoverListener(coordinateGrid);
  
  colPositions = new HorizontalPositionCache(function(col) {
      return firstRowCellInners.eq(col);
  });

  colContentPositions = new HorizontalPositionCache(function(col) {
      return firstRowCellContentInners.eq(col);
  });


  function colLeft(col) {
      return colPositions.left(col);
  }


  function colRight(col) {
      return colPositions.right(col);
  }
  
  
  function colContentLeft(col) {
      return colContentPositions.left(col);
  }
  
  
  function colContentRight(col) {
      return colContentPositions.right(col);
  }
  
  
  function allDayRow(i) {
      return bodyRows.eq(i);
  }
  
}

;;

function BasicEventRenderer() {
  var t = this;
  
  
  // exports
  t.renderEvents = renderEvents;
  t.clearEvents = clearEvents;
  

  // imports
  DayEventRenderer.call(t);

  
  function renderEvents(events, modifiedEventId) {
      t.renderDayEvents(events, modifiedEventId);
  }
  
  
  function clearEvents() {
      t.getDaySegmentContainer().empty();
  }


  // TODO: have this class (and AgendaEventRenderer) be responsible for creating the event container div

}

;;

fcViews.agendaWeek = AgendaWeekView;

function AgendaWeekView(element, calendar) {
  var t = this;
  
  
  // exports
  t.render = render;
  
  
  // imports
  AgendaView.call(t, element, calendar, 'agendaWeek');
  var opt = t.opt;
  var renderAgenda = t.renderAgenda;
  var skipHiddenDays = t.skipHiddenDays;
  var getCellsPerWeek = t.getCellsPerWeek;
  var formatDates = calendar.formatDates;

  
  function render(date, delta) {

      if (delta) {
          addDays(date, delta * 7);
      }

      var start = addDays(cloneDate(date), -((date.getDay() - opt('firstDay') + 7) % 7));
      var end = addDays(cloneDate(start), 7);

      var visStart = cloneDate(start);
      skipHiddenDays(visStart);

      var visEnd = cloneDate(end);
      skipHiddenDays(visEnd, -1, true);

      var colCnt = getCellsPerWeek();

      t.title = formatDates(
          visStart,
          addDays(cloneDate(visEnd), -1),
          opt('titleFormat')
      );

      t.start = start;
      t.end = end;
      t.visStart = visStart;
      t.visEnd = visEnd;

      renderAgenda(colCnt);
  }

}

;;

fcViews.agendaDay = AgendaDayView;


function AgendaDayView(element, calendar) {
  var t = this;
  
  
  // exports
  t.render = render;
  
  
  // imports
  AgendaView.call(t, element, calendar, 'agendaDay');
  var opt = t.opt;
  var renderAgenda = t.renderAgenda;
  var skipHiddenDays = t.skipHiddenDays;
  var formatDate = calendar.formatDate;
  
  
  function render(date, delta) {

      if (delta) {
          addDays(date, delta);
      }
      skipHiddenDays(date, delta < 0 ? -1 : 1);

      var start = cloneDate(date, true);
      var end = addDays(cloneDate(start), 1);

      t.title = formatDate(date, opt('titleFormat'));

      t.start = t.visStart = start;
      t.end = t.visEnd = end;

      renderAgenda(1);
  }
  

}

;;

setDefaults({
  allDaySlot: true,
  allDayText: 'all-day',
  firstHour: 6,
  slotMinutes: 30,
  defaultEventMinutes: 120,
  axisFormat: 'h(:mm)tt',
  timeFormat: {
      agenda: 'h:mm{ - h:mm}'
  },
  dragOpacity: {
      agenda: .5
  },
  minTime: 0,
  maxTime: 24,
  slotEventOverlap: true
});


// TODO: make it work in quirks mode (event corners, all-day height)
// TODO: test liquid width, especially in IE6


function AgendaView(element, calendar, viewName) {
  var t = this;
  
  
  // exports
  t.renderAgenda = renderAgenda;
  t.setWidth = setWidth;
  t.setHeight = setHeight;
  t.afterRender = afterRender;
  t.defaultEventEnd = defaultEventEnd;
  t.timePosition = timePosition;
  t.getIsCellAllDay = getIsCellAllDay;
  t.allDayRow = getAllDayRow;
  t.getCoordinateGrid = function() { return coordinateGrid }; // specifically for AgendaEventRenderer
  t.getHoverListener = function() { return hoverListener };
  t.colLeft = colLeft;
  t.colRight = colRight;
  t.colContentLeft = colContentLeft;
  t.colContentRight = colContentRight;
  t.getDaySegmentContainer = function() { return daySegmentContainer };
  t.getSlotSegmentContainer = function() { return slotSegmentContainer };
  t.getMinMinute = function() { return minMinute };
  t.getMaxMinute = function() { return maxMinute };
  t.getSlotContainer = function() { return slotContainer };
  t.getRowCnt = function() { return 1 };
  t.getColCnt = function() { return colCnt };
  t.getColWidth = function() { return colWidth };
  t.getSnapHeight = function() { return snapHeight };
  t.getSnapMinutes = function() { return snapMinutes };
  t.defaultSelectionEnd = defaultSelectionEnd;
  t.renderDayOverlay = renderDayOverlay;
  t.renderSelection = renderSelection;
  t.clearSelection = clearSelection;
  t.reportDayClick = reportDayClick; // selection mousedown hack
  t.dragStart = dragStart;
  t.dragStop = dragStop;
  
  
  // imports
  View.call(t, element, calendar, viewName);
  OverlayManager.call(t);
  SelectionManager.call(t);
  AgendaEventRenderer.call(t);
  var opt = t.opt;
  var trigger = t.trigger;
  var renderOverlay = t.renderOverlay;
  var clearOverlays = t.clearOverlays;
  var reportSelection = t.reportSelection;
  var unselect = t.unselect;
  var daySelectionMousedown = t.daySelectionMousedown;
  var slotSegHtml = t.slotSegHtml;
  var cellToDate = t.cellToDate;
  var dateToCell = t.dateToCell;
  var rangeToSegments = t.rangeToSegments;
  var formatDate = calendar.formatDate;
  
  
  // locals
  
  var dayTable;
  var dayHead;
  var dayHeadCells;
  var dayBody;
  var dayBodyCells;
  var dayBodyCellInners;
  var dayBodyCellContentInners;
  var dayBodyFirstCell;
  var dayBodyFirstCellStretcher;
  var slotLayer;
  var daySegmentContainer;
  var allDayTable;
  var allDayRow;
  var slotScroller;
  var slotContainer;
  var slotSegmentContainer;
  var slotTable;
  var selectionHelper;
  
  var viewWidth;
  var viewHeight;
  var axisWidth;
  var colWidth;
  var gutterWidth;
  var slotHeight; // TODO: what if slotHeight changes? (see issue 650)

  var snapMinutes;
  var snapRatio; // ratio of number of "selection" slots to normal slots. (ex: 1, 2, 4)
  var snapHeight; // holds the pixel hight of a "selection" slot
  
  var colCnt;
  var slotCnt;
  var coordinateGrid;
  var hoverListener;
  var colPositions;
  var colContentPositions;
  var slotTopCache = {};
  
  var tm;
  var rtl;
  var minMinute, maxMinute;
  var colFormat;
  var showWeekNumbers;
  var weekNumberTitle;
  var weekNumberFormat;
  

  
  /* Rendering
  -----------------------------------------------------------------------------*/
  
  
  disableTextSelection(element.addClass('fc-agenda'));
  
  
  function renderAgenda(c) {
      colCnt = c;
      updateOptions();

      if (!dayTable) { // first time rendering?
          buildSkeleton(); // builds day table, slot area, events containers
      }
      else {
          buildDayTable(); // rebuilds day table
      }
  }
  
  
  function updateOptions() {

      tm = opt('theme') ? 'ui' : 'fc';
      rtl = opt('isRTL')
      minMinute = parseTime(opt('minTime'));
      maxMinute = parseTime(opt('maxTime'));
      colFormat = opt('columnFormat');

      // week # options. (TODO: bad, logic also in other views)
      showWeekNumbers = opt('weekNumbers');
      weekNumberTitle = opt('weekNumberTitle');
      if (opt('weekNumberCalculation') != 'iso') {
          weekNumberFormat = "w";
      }
      else {
          weekNumberFormat = "W";
      }

      snapMinutes = opt('snapMinutes') || opt('slotMinutes');
  }



  /* Build DOM
  -----------------------------------------------------------------------*/


  function buildSkeleton() {
      var headerClass = tm + "-widget-header";
      var contentClass = tm + "-widget-content";
      var s;
      var d;
      var i;
      var maxd;
      var minutes;
      var slotNormal = opt('slotMinutes') % 15 == 0;
      
      buildDayTable();
      
      slotLayer =
          $("<div style='position:absolute;z-index:2;left:0;width:100%'/>")
              .appendTo(element);
              
      if (opt('allDaySlot')) {
      
          daySegmentContainer =
              $("<div class='fc-event-container' style='position:absolute;z-index:8;top:0;left:0'/>")
                  .appendTo(slotLayer);
      
          s =
              "<table style='width:100%' class='fc-agenda-allday' cellspacing='0'>" +
              "<tr>" +
              "<th class='" + headerClass + " fc-agenda-axis'>" + opt('allDayText') + "</th>" +
              "<td>" +
              "<div class='fc-day-content'><div style='position:relative'/></div>" +
              "</td>" +
              "<th class='" + headerClass + " fc-agenda-gutter'>&nbsp;</th>" +
              "</tr>" +
              "</table>";
          allDayTable = $(s).appendTo(slotLayer);
          allDayRow = allDayTable.find('tr');
          
          dayBind(allDayRow.find('td'));
          
          slotLayer.append(
              "<div class='fc-agenda-divider " + headerClass + "'>" +
              "<div class='fc-agenda-divider-inner'/>" +
              "</div>"
          );
          
      }else{
      
          daySegmentContainer = $([]); // in jQuery 1.4, we can just do $()
      
      }
      
      slotScroller =
          $("<div style='position:absolute;width:100%;overflow-x:hidden;overflow-y:auto'/>")
              .appendTo(slotLayer);
              
      slotContainer =
          $("<div style='position:relative;width:100%;overflow:hidden'/>")
              .appendTo(slotScroller);
              
      slotSegmentContainer =
          $("<div class='fc-event-container' style='position:absolute;z-index:8;top:0;left:0'/>")
              .appendTo(slotContainer);
      
      s =
          "<table class='fc-agenda-slots' style='width:100%' cellspacing='0'>" +
          "<tbody>";
      d = zeroDate();
      maxd = addMinutes(cloneDate(d), maxMinute);
      addMinutes(d, minMinute);
      slotCnt = 0;
      for (i=0; d < maxd; i++) {
          minutes = d.getMinutes();
          s +=
              "<tr class='fc-slot" + i + ' ' + (!minutes ? '' : 'fc-minor') + "'>" +
              "<th class='fc-agenda-axis " + headerClass + "'>" +
              ((!slotNormal || !minutes) ? formatDate(d, opt('axisFormat')) : '&nbsp;') +
              "</th>" +
              "<td class='" + contentClass + "'>" +
              "<div style='position:relative'>&nbsp;</div>" +
              "</td>" +
              "</tr>";
          addMinutes(d, opt('slotMinutes'));
          slotCnt++;
      }
      s +=
          "</tbody>" +
          "</table>";
      slotTable = $(s).appendTo(slotContainer);
      
      slotBind(slotTable.find('td'));
  }



  /* Build Day Table
  -----------------------------------------------------------------------*/


  function buildDayTable() {
      var html = buildDayTableHTML();

      if (dayTable) {
          dayTable.remove();
      }
      dayTable = $(html).appendTo(element);

      dayHead = dayTable.find('thead');
      dayHeadCells = dayHead.find('th').slice(1, -1); // exclude gutter
      dayBody = dayTable.find('tbody');
      dayBodyCells = dayBody.find('td').slice(0, -1); // exclude gutter
      dayBodyCellInners = dayBodyCells.find('> div');
      dayBodyCellContentInners = dayBodyCells.find('.fc-day-content > div');

      dayBodyFirstCell = dayBodyCells.eq(0);
      dayBodyFirstCellStretcher = dayBodyCellInners.eq(0);
      
      markFirstLast(dayHead.add(dayHead.find('tr')));
      markFirstLast(dayBody.add(dayBody.find('tr')));

      // TODO: now that we rebuild the cells every time, we should call dayRender
  }


  function buildDayTableHTML() {
      var html =
          "<table style='width:100%' class='fc-agenda-days fc-border-separate' cellspacing='0'>" +
          buildDayTableHeadHTML() +
          buildDayTableBodyHTML() +
          "</table>";

      return html;
  }


  function buildDayTableHeadHTML() {
      var headerClass = tm + "-widget-header";
      var date;
      var html = '';
      var weekText;
      var col;

      html +=
          "<thead>" +
          "<tr>";

      if (showWeekNumbers) {
          date = cellToDate(0, 0);
          weekText = formatDate(date, weekNumberFormat);
          if (rtl) {
              weekText += weekNumberTitle;
          }
          else {
              weekText = weekNumberTitle + weekText;
          }
          html +=
              "<th class='fc-agenda-axis fc-week-number " + headerClass + "'>" +
              htmlEscape(weekText) +
              "</th>";
      }
      else {
          html += "<th class='fc-agenda-axis " + headerClass + "'>&nbsp;</th>";
      }

      for (col=0; col<colCnt; col++) {
          date = cellToDate(0, col);
          html +=
              "<th class='fc-" + dayIDs[date.getDay()] + " fc-col" + col + ' ' + headerClass + "'>" +
              htmlEscape(formatDate(date, colFormat)) +
              "</th>";
      }

      html +=
          "<th class='fc-agenda-gutter " + headerClass + "'>&nbsp;</th>" +
          "</tr>" +
          "</thead>";

      return html;
  }


  function buildDayTableBodyHTML() {
      var headerClass = tm + "-widget-header"; // TODO: make these when updateOptions() called
      var contentClass = tm + "-widget-content";
      var date;
      var today = clearTime(new Date());
      var col;
      var cellsHTML;
      var cellHTML;
      var classNames;
      var html = '';

      html +=
          "<tbody>" +
          "<tr>" +
          "<th class='fc-agenda-axis " + headerClass + "'>&nbsp;</th>";

      cellsHTML = '';

      for (col=0; col<colCnt; col++) {

          date = cellToDate(0, col);

          classNames = [
              'fc-col' + col,
              'fc-' + dayIDs[date.getDay()],
              contentClass
          ];
          if (+date == +today) {
              classNames.push(
                  tm + '-state-highlight',
                  'fc-today'
              );
          }
          else if (date < today) {
              classNames.push('fc-past');
          }
          else {
              classNames.push('fc-future');
          }

          cellHTML =
              "<td class='" + classNames.join(' ') + "'>" +
              "<div>" +
              "<div class='fc-day-content'>" +
              "<div style='position:relative'>&nbsp;</div>" +
              "</div>" +
              "</div>" +
              "</td>";

          cellsHTML += cellHTML;
      }

      html += cellsHTML;
      html +=
          "<td class='fc-agenda-gutter " + contentClass + "'>&nbsp;</td>" +
          "</tr>" +
          "</tbody>";

      return html;
  }


  // TODO: data-date on the cells

  
  
  /* Dimensions
  -----------------------------------------------------------------------*/

  
  function setHeight(height) {
      if (height === undefined) {
          height = viewHeight;
      }
      viewHeight = height;
      slotTopCache = {};
  
      var headHeight = dayBody.position().top;
      var allDayHeight = slotScroller.position().top; // including divider
      var bodyHeight = Math.min( // total body height, including borders
          height - headHeight,   // when scrollbars
          slotTable.height() + allDayHeight + 1 // when no scrollbars. +1 for bottom border
      );

      dayBodyFirstCellStretcher
          .height(bodyHeight - vsides(dayBodyFirstCell));
      
      slotLayer.css('top', headHeight);
      
      slotScroller.height(bodyHeight - allDayHeight - 1);
      
      // the stylesheet guarantees that the first row has no border.
      // this allows .height() to work well cross-browser.
      slotHeight = slotTable.find('tr:first').height() + 1; // +1 for bottom border

      snapRatio = opt('slotMinutes') / snapMinutes;
      snapHeight = slotHeight / snapRatio;
  }
  
  
  function setWidth(width) {
      viewWidth = width;
      colPositions.clear();
      colContentPositions.clear();

      var axisFirstCells = dayHead.find('th:first');
      if (allDayTable) {
          axisFirstCells = axisFirstCells.add(allDayTable.find('th:first'));
      }
      axisFirstCells = axisFirstCells.add(slotTable.find('th:first'));
      
      axisWidth = 0;
      setOuterWidth(
          axisFirstCells
              .width('')
              .each(function(i, _cell) {
                  axisWidth = Math.max(axisWidth, $(_cell).outerWidth());
              }),
          axisWidth
      );
      
      var gutterCells = dayTable.find('.fc-agenda-gutter');
      if (allDayTable) {
          gutterCells = gutterCells.add(allDayTable.find('th.fc-agenda-gutter'));
      }

      var slotTableWidth = slotScroller[0].clientWidth; // needs to be done after axisWidth (for IE7)
      
      gutterWidth = slotScroller.width() - slotTableWidth;
      if (gutterWidth) {
          setOuterWidth(gutterCells, gutterWidth);
          gutterCells
              .show()
              .prev()
              .removeClass('fc-last');
      }else{
          gutterCells
              .hide()
              .prev()
              .addClass('fc-last');
      }
      
      colWidth = Math.floor((slotTableWidth - axisWidth) / colCnt);
      setOuterWidth(dayHeadCells.slice(0, -1), colWidth);
  }
  


  /* Scrolling
  -----------------------------------------------------------------------*/


  function resetScroll() {
      var d0 = zeroDate();
      var scrollDate = cloneDate(d0);
      scrollDate.setHours(opt('firstHour'));
      var top = timePosition(d0, scrollDate) + 1; // +1 for the border
      function scroll() {
          slotScroller.scrollTop(top);
      }
      scroll();
      setTimeout(scroll, 0); // overrides any previous scroll state made by the browser
  }


  function afterRender() { // after the view has been freshly rendered and sized
      resetScroll();
  }
  
  
  
  /* Slot/Day clicking and binding
  -----------------------------------------------------------------------*/
  

  function dayBind(cells) {
      cells.click(slotClick)
          .mousedown(daySelectionMousedown);
  }


  function slotBind(cells) {
      cells.click(slotClick)
          .mousedown(slotSelectionMousedown);
  }
  
  
  function slotClick(ev) {
      if (!opt('selectable')) { // if selectable, SelectionManager will worry about dayClick
          var col = Math.min(colCnt-1, Math.floor((ev.pageX - dayTable.offset().left - axisWidth) / colWidth));
          var date = cellToDate(0, col);
          var rowMatch = this.parentNode.className.match(/fc-slot(\d+)/); // TODO: maybe use data
          if (rowMatch) {
              var mins = parseInt(rowMatch[1]) * opt('slotMinutes');
              var hours = Math.floor(mins/60);
              date.setHours(hours);
              date.setMinutes(mins%60 + minMinute);
              trigger('dayClick', dayBodyCells[col], date, false, ev);
          }else{
              trigger('dayClick', dayBodyCells[col], date, true, ev);
          }
      }
  }
  
  
  
  /* Semi-transparent Overlay Helpers
  -----------------------------------------------------*/
  // TODO: should be consolidated with BasicView's methods


  function renderDayOverlay(overlayStart, overlayEnd, refreshCoordinateGrid) { // overlayEnd is exclusive

      if (refreshCoordinateGrid) {
          coordinateGrid.build();
      }

      var segments = rangeToSegments(overlayStart, overlayEnd);

      for (var i=0; i<segments.length; i++) {
          var segment = segments[i];
          dayBind(
              renderCellOverlay(
                  segment.row,
                  segment.leftCol,
                  segment.row,
                  segment.rightCol
              )
          );
      }
  }
  
  
  function renderCellOverlay(row0, col0, row1, col1) { // only for all-day?
      var rect = coordinateGrid.rect(row0, col0, row1, col1, slotLayer);
      return renderOverlay(rect, slotLayer);
  }
  

  function renderSlotOverlay(overlayStart, overlayEnd) {
      for (var i=0; i<colCnt; i++) {
          var dayStart = cellToDate(0, i);
          var dayEnd = addDays(cloneDate(dayStart), 1);
          var stretchStart = new Date(Math.max(dayStart, overlayStart));
          var stretchEnd = new Date(Math.min(dayEnd, overlayEnd));
          if (stretchStart < stretchEnd) {
              var rect = coordinateGrid.rect(0, i, 0, i, slotContainer); // only use it for horizontal coords
              var top = timePosition(dayStart, stretchStart);
              var bottom = timePosition(dayStart, stretchEnd);
              rect.top = top;
              rect.height = bottom - top;
              slotBind(
                  renderOverlay(rect, slotContainer)
              );
          }
      }
  }
  
  
  
  /* Coordinate Utilities
  -----------------------------------------------------------------------------*/
  
  
  coordinateGrid = new CoordinateGrid(function(rows, cols) {
      var e, n, p;
      dayHeadCells.each(function(i, _e) {
          e = $(_e);
          n = e.offset().left;
          if (i) {
              p[1] = n;
          }
          p = [n];
          cols[i] = p;
      });
      p[1] = n + e.outerWidth();
      if (opt('allDaySlot')) {
          e = allDayRow;
          n = e.offset().top;
          rows[0] = [n, n+e.outerHeight()];
      }
      var slotTableTop = slotContainer.offset().top;
      var slotScrollerTop = slotScroller.offset().top;
      var slotScrollerBottom = slotScrollerTop + slotScroller.outerHeight();
      function constrain(n) {
          return Math.max(slotScrollerTop, Math.min(slotScrollerBottom, n));
      }
      for (var i=0; i<slotCnt*snapRatio; i++) { // adapt slot count to increased/decreased selection slot count
          rows.push([
              constrain(slotTableTop + snapHeight*i),
              constrain(slotTableTop + snapHeight*(i+1))
          ]);
      }
  });
  
  
  hoverListener = new HoverListener(coordinateGrid);
  
  colPositions = new HorizontalPositionCache(function(col) {
      return dayBodyCellInners.eq(col);
  });
  
  colContentPositions = new HorizontalPositionCache(function(col) {
      return dayBodyCellContentInners.eq(col);
  });
  
  
  function colLeft(col) {
      return colPositions.left(col);
  }


  function colContentLeft(col) {
      return colContentPositions.left(col);
  }


  function colRight(col) {
      return colPositions.right(col);
  }
  
  
  function colContentRight(col) {
      return colContentPositions.right(col);
  }


  function getIsCellAllDay(cell) {
      return opt('allDaySlot') && !cell.row;
  }


  function realCellToDate(cell) { // ugh "real" ... but blame it on our abuse of the "cell" system
      var d = cellToDate(0, cell.col);
      var slotIndex = cell.row;
      if (opt('allDaySlot')) {
          slotIndex--;
      }
      if (slotIndex >= 0) {
          addMinutes(d, minMinute + slotIndex * snapMinutes);
      }
      return d;
  }
  
  
  // get the Y coordinate of the given time on the given day (both Date objects)
  function timePosition(day, time) { // both date objects. day holds 00:00 of current day
      day = cloneDate(day, true);
      if (time < addMinutes(cloneDate(day), minMinute)) {
          return 0;
      }
      if (time >= addMinutes(cloneDate(day), maxMinute)) {
          return slotTable.height();
      }
      var slotMinutes = opt('slotMinutes'),
          minutes = time.getHours()*60 + time.getMinutes() - minMinute,
          slotI = Math.floor(minutes / slotMinutes),
          slotTop = slotTopCache[slotI];
      if (slotTop === undefined) {
          slotTop = slotTopCache[slotI] =
              slotTable.find('tr').eq(slotI).find('td div')[0].offsetTop;
              // .eq() is faster than ":eq()" selector
              // [0].offsetTop is faster than .position().top (do we really need this optimization?)
              // a better optimization would be to cache all these divs
      }
      return Math.max(0, Math.round(
          slotTop - 1 + slotHeight * ((minutes % slotMinutes) / slotMinutes)
      ));
  }
  
  
  function getAllDayRow(index) {
      return allDayRow;
  }
  
  
  function defaultEventEnd(event) {
      var start = cloneDate(event.start);
      if (event.allDay) {
          return start;
      }
      return addMinutes(start, opt('defaultEventMinutes'));
  }
  
  
  
  /* Selection
  ---------------------------------------------------------------------------------*/
  
  
  function defaultSelectionEnd(startDate, allDay) {
      if (allDay) {
          return cloneDate(startDate);
      }
      return addMinutes(cloneDate(startDate), opt('slotMinutes'));
  }
  
  
  function renderSelection(startDate, endDate, allDay) { // only for all-day
      if (allDay) {
          if (opt('allDaySlot')) {
              renderDayOverlay(startDate, addDays(cloneDate(endDate), 1), true);
          }
      }else{
          renderSlotSelection(startDate, endDate);
      }
  }
  
  
  function renderSlotSelection(startDate, endDate) {
      var helperOption = opt('selectHelper');
      coordinateGrid.build();
      if (helperOption) {
          var col = dateToCell(startDate).col;
          if (col >= 0 && col < colCnt) { // only works when times are on same day
              var rect = coordinateGrid.rect(0, col, 0, col, slotContainer); // only for horizontal coords
              var top = timePosition(startDate, startDate);
              var bottom = timePosition(startDate, endDate);
              if (bottom > top) { // protect against selections that are entirely before or after visible range
                  rect.top = top;
                  rect.height = bottom - top;
                  rect.left += 2;
                  rect.width -= 5;
                  if ($.isFunction(helperOption)) {
                      var helperRes = helperOption(startDate, endDate);
                      if (helperRes) {
                          rect.position = 'absolute';
                          selectionHelper = $(helperRes)
                              .css(rect)
                              .appendTo(slotContainer);
                      }
                  }else{
                      rect.isStart = true; // conside rect a "seg" now
                      rect.isEnd = true;   //
                      selectionHelper = $(slotSegHtml(
                          {
                              title: '',
                              start: startDate,
                              end: endDate,
                              className: ['fc-select-helper'],
                              editable: false
                          },
                          rect
                      ));
                      selectionHelper.css('opacity', opt('dragOpacity'));
                  }
                  if (selectionHelper) {
                      slotBind(selectionHelper);
                      slotContainer.append(selectionHelper);
                      setOuterWidth(selectionHelper, rect.width, true); // needs to be after appended
                      setOuterHeight(selectionHelper, rect.height, true);
                  }
              }
          }
      }else{
          renderSlotOverlay(startDate, endDate);
      }
  }
  
  
  function clearSelection() {
      clearOverlays();
      if (selectionHelper) {
          selectionHelper.remove();
          selectionHelper = null;
      }
  }
  
  
  function slotSelectionMousedown(ev) {
      if (ev.which == 1 && opt('selectable')) { // ev.which==1 means left mouse button
          unselect(ev);
          var dates;
          hoverListener.start(function(cell, origCell) {
              clearSelection();
              if (cell && cell.col == origCell.col && !getIsCellAllDay(cell)) {
                  var d1 = realCellToDate(origCell);
                  var d2 = realCellToDate(cell);
                  dates = [
                      d1,
                      addMinutes(cloneDate(d1), snapMinutes), // calculate minutes depending on selection slot minutes 
                      d2,
                      addMinutes(cloneDate(d2), snapMinutes)
                  ].sort(dateCompare);
                  renderSlotSelection(dates[0], dates[3]);
              }else{
                  dates = null;
              }
          }, ev);
          $(document).one('mouseup', function(ev) {
              hoverListener.stop();
              if (dates) {
                  if (+dates[0] == +dates[1]) {
                      reportDayClick(dates[0], false, ev);
                  }
                  reportSelection(dates[0], dates[3], false, ev);
              }
          });
      }
  }


  function reportDayClick(date, allDay, ev) {
      trigger('dayClick', dayBodyCells[dateToCell(date).col], date, allDay, ev);
  }
  
  
  
  /* External Dragging
  --------------------------------------------------------------------------------*/
  
  
  function dragStart(_dragElement, ev, ui) {
      hoverListener.start(function(cell) {
          clearOverlays();
          if (cell) {
              if (getIsCellAllDay(cell)) {
                  renderCellOverlay(cell.row, cell.col, cell.row, cell.col);
              }else{
                  var d1 = realCellToDate(cell);
                  var d2 = addMinutes(cloneDate(d1), opt('defaultEventMinutes'));
                  renderSlotOverlay(d1, d2);
              }
          }
      }, ev);
  }
  
  
  function dragStop(_dragElement, ev, ui) {
      var cell = hoverListener.stop();
      clearOverlays();
      if (cell) {
          trigger('drop', _dragElement, realCellToDate(cell), getIsCellAllDay(cell), ev, ui);
      }
  }
  

}

;;

function AgendaEventRenderer() {
  var t = this;
  
  
  // exports
  t.renderEvents = renderEvents;
  t.clearEvents = clearEvents;
  t.slotSegHtml = slotSegHtml;
  
  
  // imports
  DayEventRenderer.call(t);
  var opt = t.opt;
  var trigger = t.trigger;
  var isEventDraggable = t.isEventDraggable;
  var isEventResizable = t.isEventResizable;
  var eventEnd = t.eventEnd;
  var eventElementHandlers = t.eventElementHandlers;
  var setHeight = t.setHeight;
  var getDaySegmentContainer = t.getDaySegmentContainer;
  var getSlotSegmentContainer = t.getSlotSegmentContainer;
  var getHoverListener = t.getHoverListener;
  var getMaxMinute = t.getMaxMinute;
  var getMinMinute = t.getMinMinute;
  var timePosition = t.timePosition;
  var getIsCellAllDay = t.getIsCellAllDay;
  var colContentLeft = t.colContentLeft;
  var colContentRight = t.colContentRight;
  var cellToDate = t.cellToDate;
  var getColCnt = t.getColCnt;
  var getColWidth = t.getColWidth;
  var getSnapHeight = t.getSnapHeight;
  var getSnapMinutes = t.getSnapMinutes;
  var getSlotContainer = t.getSlotContainer;
  var reportEventElement = t.reportEventElement;
  var showEvents = t.showEvents;
  var hideEvents = t.hideEvents;
  var eventDrop = t.eventDrop;
  var eventResize = t.eventResize;
  var renderDayOverlay = t.renderDayOverlay;
  var clearOverlays = t.clearOverlays;
  var renderDayEvents = t.renderDayEvents;
  var calendar = t.calendar;
  var formatDate = calendar.formatDate;
  var formatDates = calendar.formatDates;


  // overrides
  t.draggableDayEvent = draggableDayEvent;

  
  
  /* Rendering
  ----------------------------------------------------------------------------*/
  

  function renderEvents(events, modifiedEventId) {
      var i, len=events.length,
          dayEvents=[],
          slotEvents=[];
      for (i=0; i<len; i++) {
          if (events[i].allDay) {
              dayEvents.push(events[i]);
          }else{
              slotEvents.push(events[i]);
          }
      }

      if (opt('allDaySlot')) {
          renderDayEvents(dayEvents, modifiedEventId);
          setHeight(); // no params means set to viewHeight
      }

      renderSlotSegs(compileSlotSegs(slotEvents), modifiedEventId);
  }
  
  
  function clearEvents() {
      getDaySegmentContainer().empty();
      getSlotSegmentContainer().empty();
  }

  
  function compileSlotSegs(events) {
      var colCnt = getColCnt(),
          minMinute = getMinMinute(),
          maxMinute = getMaxMinute(),
          d,
          visEventEnds = $.map(events, slotEventEnd),
          i,
          j, seg,
          colSegs,
          segs = [];

      for (i=0; i<colCnt; i++) {

          d = cellToDate(0, i);
          addMinutes(d, minMinute);

          colSegs = sliceSegs(
              events,
              visEventEnds,
              d,
              addMinutes(cloneDate(d), maxMinute-minMinute)
          );

          colSegs = placeSlotSegs(colSegs); // returns a new order

          for (j=0; j<colSegs.length; j++) {
              seg = colSegs[j];
              seg.col = i;
              segs.push(seg);
          }
      }

      return segs;
  }


  function sliceSegs(events, visEventEnds, start, end) {
      var segs = [],
          i, len=events.length, event,
          eventStart, eventEnd,
          segStart, segEnd,
          isStart, isEnd;
      for (i=0; i<len; i++) {
          event = events[i];
          eventStart = event.start;
          eventEnd = visEventEnds[i];
          if (eventEnd > start && eventStart < end) {
              if (eventStart < start) {
                  segStart = cloneDate(start);
                  isStart = false;
              }else{
                  segStart = eventStart;
                  isStart = true;
              }
              if (eventEnd > end) {
                  segEnd = cloneDate(end);
                  isEnd = false;
              }else{
                  segEnd = eventEnd;
                  isEnd = true;
              }
              segs.push({
                  event: event,
                  start: segStart,
                  end: segEnd,
                  isStart: isStart,
                  isEnd: isEnd
              });
          }
      }
      return segs.sort(compareSlotSegs);
  }


  function slotEventEnd(event) {
      if (event.end) {
          return cloneDate(event.end);
      }else{
          return addMinutes(cloneDate(event.start), opt('defaultEventMinutes'));
      }
  }
  
  
  // renders events in the 'time slots' at the bottom
  // TODO: when we refactor this, when user returns `false` eventRender, don't have empty space
  // TODO: refactor will include using pixels to detect collisions instead of dates (handy for seg cmp)
  
  function renderSlotSegs(segs, modifiedEventId) {
  
      var i, segCnt=segs.length, seg,
          event,
          top,
          bottom,
          columnLeft,
          columnRight,
          columnWidth,
          width,
          left,
          right,
          html = '',
          eventElements,
          eventElement,
          triggerRes,
          titleElement,
          height,
          slotSegmentContainer = getSlotSegmentContainer(),
          isRTL = opt('isRTL');
          
      // calculate position/dimensions, create html
      for (i=0; i<segCnt; i++) {
          seg = segs[i];
          event = seg.event;
          top = timePosition(seg.start, seg.start);
          bottom = timePosition(seg.start, seg.end);
          columnLeft = colContentLeft(seg.col);
          columnRight = colContentRight(seg.col);
          columnWidth = columnRight - columnLeft;

          // shave off space on right near scrollbars (2.5%)
          // TODO: move this to CSS somehow
          columnRight -= columnWidth * .025;
          columnWidth = columnRight - columnLeft;

          width = columnWidth * (seg.forwardCoord - seg.backwardCoord);

          if (opt('slotEventOverlap')) {
              // double the width while making sure resize handle is visible
              // (assumed to be 20px wide)
              width = Math.max(
                  (width - (20/2)) * 2,
                  width // narrow columns will want to make the segment smaller than
                      // the natural width. don't allow it
              );
          }

          if (isRTL) {
              right = columnRight - seg.backwardCoord * columnWidth;
              left = right - width;
          }
          else {
              left = columnLeft + seg.backwardCoord * columnWidth;
              right = left + width;
          }

          // make sure horizontal coordinates are in bounds
          left = Math.max(left, columnLeft);
          right = Math.min(right, columnRight);
          width = right - left;

          seg.top = top;
          seg.left = left;
          seg.outerWidth = width;
          seg.outerHeight = bottom - top;
          html += slotSegHtml(event, seg);
      }

      slotSegmentContainer[0].innerHTML = html; // faster than html()
      eventElements = slotSegmentContainer.children();
      
      // retrieve elements, run through eventRender callback, bind event handlers
      for (i=0; i<segCnt; i++) {
          seg = segs[i];
          event = seg.event;
          eventElement = $(eventElements[i]); // faster than eq()
          triggerRes = trigger('eventRender', event, event, eventElement);
          if (triggerRes === false) {
              eventElement.remove();
          }else{
              if (triggerRes && triggerRes !== true) {
                  eventElement.remove();
                  eventElement = $(triggerRes)
                      .css({
                          position: 'absolute',
                          top: seg.top,
                          left: seg.left
                      })
                      .appendTo(slotSegmentContainer);
              }
              seg.element = eventElement;
              if (event._id === modifiedEventId) {
                  bindSlotSeg(event, eventElement, seg);
              }else{
                  eventElement[0]._fci = i; // for lazySegBind
              }
              reportEventElement(event, eventElement);
          }
      }
      
      lazySegBind(slotSegmentContainer, segs, bindSlotSeg);
      
      // record event sides and title positions
      for (i=0; i<segCnt; i++) {
          seg = segs[i];
          if (eventElement = seg.element) {
              seg.vsides = vsides(eventElement, true);
              seg.hsides = hsides(eventElement, true);
              titleElement = eventElement.find('.fc-event-title');
              if (titleElement.length) {
                  seg.contentTop = titleElement[0].offsetTop;
              }
          }
      }
      
      // set all positions/dimensions at once
      for (i=0; i<segCnt; i++) {
          seg = segs[i];
          if (eventElement = seg.element) {
              eventElement[0].style.width = Math.max(0, seg.outerWidth - seg.hsides) + 'px';
              height = Math.max(0, seg.outerHeight - seg.vsides);
              eventElement[0].style.height = height + 'px';
              event = seg.event;
              if (seg.contentTop !== undefined && height - seg.contentTop < 10) {
                  // not enough room for title, put it in the time (TODO: maybe make both display:inline instead)
                  eventElement.find('div.fc-event-time')
                      .text(formatDate(event.start, opt('timeFormat')) + ' - ' + event.title);
                  eventElement.find('div.fc-event-title')
                      .remove();
              }
              trigger('eventAfterRender', event, event, eventElement);
          }
      }
                  
  }
  
  
  function slotSegHtml(event, seg) {
      var html = "<";
      var url = event.url;
      var skinCss = getSkinCss(event, opt);
      var classes = ['fc-event', 'fc-event-vert'];
      if (isEventDraggable(event)) {
          classes.push('fc-event-draggable');
      }
      if (seg.isStart) {
          classes.push('fc-event-start');
      }
      if (seg.isEnd) {
          classes.push('fc-event-end');
      }
      classes = classes.concat(event.className);
      if (event.source) {
          classes = classes.concat(event.source.className || []);
      }
      if (url) {
          html += "a href='" + htmlEscape(event.url) + "'";
      }else{
          html += "div";
      }
      html +=
          " class='" + classes.join(' ') + "'" +
          " style=" +
              "'" +
              "position:absolute;" +
              "top:" + seg.top + "px;" +
              "left:" + seg.left + "px;" +
              skinCss +
              "'" +
          ">" +
          "<div class='fc-event-inner'>" +
          "<div class='fc-event-time'>" +
          htmlEscape(formatDates(event.start, event.end, opt('timeFormat'))) +
          "</div>" +
          "<div class='fc-event-title'>" +
          htmlEscape(event.title || '') +
          "</div>" +
          "</div>" +
          "<div class='fc-event-bg'></div>";
      if (seg.isEnd && isEventResizable(event)) {
          html +=
              "<div class='ui-resizable-handle ui-resizable-s'>=</div>";
      }
      html +=
          "</" + (url ? "a" : "div") + ">";
      return html;
  }
  
  
  function bindSlotSeg(event, eventElement, seg) {
      var timeElement = eventElement.find('div.fc-event-time');
      if (isEventDraggable(event)) {
          draggableSlotEvent(event, eventElement, timeElement);
      }
      if (seg.isEnd && isEventResizable(event)) {
          resizableSlotEvent(event, eventElement, timeElement);
      }
      eventElementHandlers(event, eventElement);
  }
  
  
  
  /* Dragging
  -----------------------------------------------------------------------------------*/
  
  
  // when event starts out FULL-DAY
  // overrides DayEventRenderer's version because it needs to account for dragging elements
  // to and from the slot area.
  
  function draggableDayEvent(event, eventElement, seg) {
      var isStart = seg.isStart;
      var origWidth;
      var revert;
      var allDay = true;
      var dayDelta;
      var hoverListener = getHoverListener();
      var colWidth = getColWidth();
      var snapHeight = getSnapHeight();
      var snapMinutes = getSnapMinutes();
      var minMinute = getMinMinute();
      eventElement.draggable({
          opacity: opt('dragOpacity', 'month'), // use whatever the month view was using
          revertDuration: opt('dragRevertDuration'),
          start: function(ev, ui) {
              trigger('eventDragStart', eventElement, event, ev, ui);
              hideEvents(event, eventElement);
              origWidth = eventElement.width();
              hoverListener.start(function(cell, origCell) {
                  clearOverlays();
                  if (cell) {
                      revert = false;
                      var origDate = cellToDate(0, origCell.col);
                      var date = cellToDate(0, cell.col);
                      dayDelta = dayDiff(date, origDate);
                      if (!cell.row) {
                          // on full-days
                          renderDayOverlay(
                              addDays(cloneDate(event.start), dayDelta),
                              addDays(exclEndDay(event), dayDelta)
                          );
                          resetElement();
                      }else{
                          // mouse is over bottom slots
                          if (isStart) {
                              if (allDay) {
                                  // convert event to temporary slot-event
                                  eventElement.width(colWidth - 10); // don't use entire width
                                  setOuterHeight(
                                      eventElement,
                                      snapHeight * Math.round(
                                          (event.end ? ((event.end - event.start) / MINUTE_MS) : opt('defaultEventMinutes')) /
                                              snapMinutes
                                      )
                                  );
                                  eventElement.draggable('option', 'grid', [colWidth, 1]);
                                  allDay = false;
                              }
                          }else{
                              revert = true;
                          }
                      }
                      revert = revert || (allDay && !dayDelta);
                  }else{
                      resetElement();
                      revert = true;
                  }
                  eventElement.draggable('option', 'revert', revert);
              }, ev, 'drag');
          },
          stop: function(ev, ui) {
              hoverListener.stop();
              clearOverlays();
              trigger('eventDragStop', eventElement, event, ev, ui);
              if (revert) {
                  // hasn't moved or is out of bounds (draggable has already reverted)
                  resetElement();
                  eventElement.css('filter', ''); // clear IE opacity side-effects
                  showEvents(event, eventElement);
              }else{
                  // changed!
                  var minuteDelta = 0;
                  if (!allDay) {
                      minuteDelta = Math.round((eventElement.offset().top - getSlotContainer().offset().top) / snapHeight)
                          * snapMinutes
                          + minMinute
                          - (event.start.getHours() * 60 + event.start.getMinutes());
                  }
                  eventDrop(this, event, dayDelta, minuteDelta, allDay, ev, ui);
              }
          }
      });
      function resetElement() {
          if (!allDay) {
              eventElement
                  .width(origWidth)
                  .height('')
                  .draggable('option', 'grid', null);
              allDay = true;
          }
      }
  }
  
  
  // when event starts out IN TIMESLOTS
  
  function draggableSlotEvent(event, eventElement, timeElement) {
      var coordinateGrid = t.getCoordinateGrid();
      var colCnt = getColCnt();
      var colWidth = getColWidth();
      var snapHeight = getSnapHeight();
      var snapMinutes = getSnapMinutes();

      // states
      var origPosition; // original position of the element, not the mouse
      var origCell;
      var isInBounds, prevIsInBounds;
      var isAllDay, prevIsAllDay;
      var colDelta, prevColDelta;
      var dayDelta; // derived from colDelta
      var minuteDelta, prevMinuteDelta;

      eventElement.draggable({
          scroll: false,
          grid: [ colWidth, snapHeight ],
          axis: colCnt==1 ? 'y' : false,
          opacity: opt('dragOpacity'),
          revertDuration: opt('dragRevertDuration'),
          start: function(ev, ui) {

              trigger('eventDragStart', eventElement, event, ev, ui);
              hideEvents(event, eventElement);

              coordinateGrid.build();

              // initialize states
              origPosition = eventElement.position();
              origCell = coordinateGrid.cell(ev.pageX, ev.pageY);
              isInBounds = prevIsInBounds = true;
              isAllDay = prevIsAllDay = getIsCellAllDay(origCell);
              colDelta = prevColDelta = 0;
              dayDelta = 0;
              minuteDelta = prevMinuteDelta = 0;

          },
          drag: function(ev, ui) {

              // NOTE: this `cell` value is only useful for determining in-bounds and all-day.
              // Bad for anything else due to the discrepancy between the mouse position and the
              // element position while snapping. (problem revealed in PR #55)
              //
              // PS- the problem exists for draggableDayEvent() when dragging an all-day event to a slot event.
              // We should overhaul the dragging system and stop relying on jQuery UI.
              var cell = coordinateGrid.cell(ev.pageX, ev.pageY);

              // update states
              isInBounds = !!cell;
              if (isInBounds) {
                  isAllDay = getIsCellAllDay(cell);

                  // calculate column delta
                  colDelta = Math.round((ui.position.left - origPosition.left) / colWidth);
                  if (colDelta != prevColDelta) {
                      // calculate the day delta based off of the original clicked column and the column delta
                      var origDate = cellToDate(0, origCell.col);
                      var col = origCell.col + colDelta;
                      col = Math.max(0, col);
                      col = Math.min(colCnt-1, col);
                      var date = cellToDate(0, col);
                      dayDelta = dayDiff(date, origDate);
                  }

                  // calculate minute delta (only if over slots)
                  if (!isAllDay) {
                      minuteDelta = Math.round((ui.position.top - origPosition.top) / snapHeight) * snapMinutes;
                  }
              }

              // any state changes?
              if (
                  isInBounds != prevIsInBounds ||
                  isAllDay != prevIsAllDay ||
                  colDelta != prevColDelta ||
                  minuteDelta != prevMinuteDelta
              ) {

                  updateUI();

                  // update previous states for next time
                  prevIsInBounds = isInBounds;
                  prevIsAllDay = isAllDay;
                  prevColDelta = colDelta;
                  prevMinuteDelta = minuteDelta;
              }

              // if out-of-bounds, revert when done, and vice versa.
              eventElement.draggable('option', 'revert', !isInBounds);

          },
          stop: function(ev, ui) {

              clearOverlays();
              trigger('eventDragStop', eventElement, event, ev, ui);

              if (isInBounds && (isAllDay || dayDelta || minuteDelta)) { // changed!
                  eventDrop(this, event, dayDelta, isAllDay ? 0 : minuteDelta, isAllDay, ev, ui);
              }
              else { // either no change or out-of-bounds (draggable has already reverted)

                  // reset states for next time, and for updateUI()
                  isInBounds = true;
                  isAllDay = false;
                  colDelta = 0;
                  dayDelta = 0;
                  minuteDelta = 0;

                  updateUI();
                  eventElement.css('filter', ''); // clear IE opacity side-effects

                  // sometimes fast drags make event revert to wrong position, so reset.
                  // also, if we dragged the element out of the area because of snapping,
                  // but the *mouse* is still in bounds, we need to reset the position.
                  eventElement.css(origPosition);

                  showEvents(event, eventElement);
              }
          }
      });

      function updateUI() {
          clearOverlays();
          if (isInBounds) {
              if (isAllDay) {
                  timeElement.hide();
                  eventElement.draggable('option', 'grid', null); // disable grid snapping
                  renderDayOverlay(
                      addDays(cloneDate(event.start), dayDelta),
                      addDays(exclEndDay(event), dayDelta)
                  );
              }
              else {
                  updateTimeText(minuteDelta);
                  timeElement.css('display', ''); // show() was causing display=inline
                  eventElement.draggable('option', 'grid', [colWidth, snapHeight]); // re-enable grid snapping
              }
          }
      }

      function updateTimeText(minuteDelta) {
          var newStart = addMinutes(cloneDate(event.start), minuteDelta);
          var newEnd;
          if (event.end) {
              newEnd = addMinutes(cloneDate(event.end), minuteDelta);
          }
          timeElement.text(formatDates(newStart, newEnd, opt('timeFormat')));
      }

  }
  
  
  
  /* Resizing
  --------------------------------------------------------------------------------------*/
  
  
  function resizableSlotEvent(event, eventElement, timeElement) {
      var snapDelta, prevSnapDelta;
      var snapHeight = getSnapHeight();
      var snapMinutes = getSnapMinutes();
      eventElement.resizable({
          handles: {
              s: '.ui-resizable-handle'
          },
          grid: snapHeight,
          start: function(ev, ui) {
              snapDelta = prevSnapDelta = 0;
              hideEvents(event, eventElement);
              trigger('eventResizeStart', this, event, ev, ui);
          },
          resize: function(ev, ui) {
              // don't rely on ui.size.height, doesn't take grid into account
              snapDelta = Math.round((Math.max(snapHeight, eventElement.height()) - ui.originalSize.height) / snapHeight);
              if (snapDelta != prevSnapDelta) {
                  timeElement.text(
                      formatDates(
                          event.start,
                          (!snapDelta && !event.end) ? null : // no change, so don't display time range
                              addMinutes(eventEnd(event), snapMinutes*snapDelta),
                          opt('timeFormat')
                      )
                  );
                  prevSnapDelta = snapDelta;
              }
          },
          stop: function(ev, ui) {
              trigger('eventResizeStop', this, event, ev, ui);
              if (snapDelta) {
                  eventResize(this, event, 0, snapMinutes*snapDelta, ev, ui);
              }else{
                  showEvents(event, eventElement);
                  // BUG: if event was really short, need to put title back in span
              }
          }
      });
  }
  

}



/* Agenda Event Segment Utilities
-----------------------------------------------------------------------------*/


// Sets the seg.backwardCoord and seg.forwardCoord on each segment and returns a new
// list in the order they should be placed into the DOM (an implicit z-index).
function placeSlotSegs(segs) {
  var levels = buildSlotSegLevels(segs);
  var level0 = levels[0];
  var i;

  computeForwardSlotSegs(levels);

  if (level0) {

      for (i=0; i<level0.length; i++) {
          computeSlotSegPressures(level0[i]);
      }

      for (i=0; i<level0.length; i++) {
          computeSlotSegCoords(level0[i], 0, 0);
      }
  }

  return flattenSlotSegLevels(levels);
}


// Builds an array of segments "levels". The first level will be the leftmost tier of segments
// if the calendar is left-to-right, or the rightmost if the calendar is right-to-left.
function buildSlotSegLevels(segs) {
  var levels = [];
  var i, seg;
  var j;

  for (i=0; i<segs.length; i++) {
      seg = segs[i];

      // go through all the levels and stop on the first level where there are no collisions
      for (j=0; j<levels.length; j++) {
          if (!computeSlotSegCollisions(seg, levels[j]).length) {
              break;
          }
      }

      (levels[j] || (levels[j] = [])).push(seg);
  }

  return levels;
}


// For every segment, figure out the other segments that are in subsequent
// levels that also occupy the same vertical space. Accumulate in seg.forwardSegs
function computeForwardSlotSegs(levels) {
  var i, level;
  var j, seg;
  var k;

  for (i=0; i<levels.length; i++) {
      level = levels[i];

      for (j=0; j<level.length; j++) {
          seg = level[j];

          seg.forwardSegs = [];
          for (k=i+1; k<levels.length; k++) {
              computeSlotSegCollisions(seg, levels[k], seg.forwardSegs);
          }
      }
  }
}


// Figure out which path forward (via seg.forwardSegs) results in the longest path until
// the furthest edge is reached. The number of segments in this path will be seg.forwardPressure
function computeSlotSegPressures(seg) {
  var forwardSegs = seg.forwardSegs;
  var forwardPressure = 0;
  var i, forwardSeg;

  if (seg.forwardPressure === undefined) { // not already computed

      for (i=0; i<forwardSegs.length; i++) {
          forwardSeg = forwardSegs[i];

          // figure out the child's maximum forward path
          computeSlotSegPressures(forwardSeg);

          // either use the existing maximum, or use the child's forward pressure
          // plus one (for the forwardSeg itself)
          forwardPressure = Math.max(
              forwardPressure,
              1 + forwardSeg.forwardPressure
          );
      }

      seg.forwardPressure = forwardPressure;
  }
}


// Calculate seg.forwardCoord and seg.backwardCoord for the segment, where both values range
// from 0 to 1. If the calendar is left-to-right, the seg.backwardCoord maps to "left" and
// seg.forwardCoord maps to "right" (via percentage). Vice-versa if the calendar is right-to-left.
//
// The segment might be part of a "series", which means consecutive segments with the same pressure
// who's width is unknown until an edge has been hit. `seriesBackwardPressure` is the number of
// segments behind this one in the current series, and `seriesBackwardCoord` is the starting
// coordinate of the first segment in the series.
function computeSlotSegCoords(seg, seriesBackwardPressure, seriesBackwardCoord) {
  var forwardSegs = seg.forwardSegs;
  var i;

  if (seg.forwardCoord === undefined) { // not already computed

      if (!forwardSegs.length) {

          // if there are no forward segments, this segment should butt up against the edge
          seg.forwardCoord = 1;
      }
      else {

          // sort highest pressure first
          forwardSegs.sort(compareForwardSlotSegs);

          // this segment's forwardCoord will be calculated from the backwardCoord of the
          // highest-pressure forward segment.
          computeSlotSegCoords(forwardSegs[0], seriesBackwardPressure + 1, seriesBackwardCoord);
          seg.forwardCoord = forwardSegs[0].backwardCoord;
      }

      // calculate the backwardCoord from the forwardCoord. consider the series
      seg.backwardCoord = seg.forwardCoord -
          (seg.forwardCoord - seriesBackwardCoord) / // available width for series
          (seriesBackwardPressure + 1); // # of segments in the series

      // use this segment's coordinates to computed the coordinates of the less-pressurized
      // forward segments
      for (i=0; i<forwardSegs.length; i++) {
          computeSlotSegCoords(forwardSegs[i], 0, seg.forwardCoord);
      }
  }
}


// Outputs a flat array of segments, from lowest to highest level
function flattenSlotSegLevels(levels) {
  var segs = [];
  var i, level;
  var j;

  for (i=0; i<levels.length; i++) {
      level = levels[i];

      for (j=0; j<level.length; j++) {
          segs.push(level[j]);
      }
  }

  return segs;
}


// Find all the segments in `otherSegs` that vertically collide with `seg`.
// Append into an optionally-supplied `results` array and return.
function computeSlotSegCollisions(seg, otherSegs, results) {
  results = results || [];

  for (var i=0; i<otherSegs.length; i++) {
      if (isSlotSegCollision(seg, otherSegs[i])) {
          results.push(otherSegs[i]);
      }
  }

  return results;
}


// Do these segments occupy the same vertical space?
function isSlotSegCollision(seg1, seg2) {
  return seg1.end > seg2.start && seg1.start < seg2.end;
}


// A cmp function for determining which forward segment to rely on more when computing coordinates.
function compareForwardSlotSegs(seg1, seg2) {
  // put higher-pressure first
  return seg2.forwardPressure - seg1.forwardPressure ||
      // put segments that are closer to initial edge first (and favor ones with no coords yet)
      (seg1.backwardCoord || 0) - (seg2.backwardCoord || 0) ||
      // do normal sorting...
      compareSlotSegs(seg1, seg2);
}


// A cmp function for determining which segment should be closer to the initial edge
// (the left edge on a left-to-right calendar).
function compareSlotSegs(seg1, seg2) {
  return seg1.start - seg2.start || // earlier start time goes first
      (seg2.end - seg2.start) - (seg1.end - seg1.start) || // tie? longer-duration goes first
      (seg1.event.title || '').localeCompare(seg2.event.title); // tie? alphabetically by title
}


;;


function View(element, calendar, viewName) {
  var t = this;
  
  
  // exports
  t.element = element;
  t.calendar = calendar;
  t.name = viewName;
  t.opt = opt;
  t.trigger = trigger;
  t.isEventDraggable = isEventDraggable;
  t.isEventResizable = isEventResizable;
  t.setEventData = setEventData;
  t.clearEventData = clearEventData;
  t.eventEnd = eventEnd;
  t.reportEventElement = reportEventElement;
  t.triggerEventDestroy = triggerEventDestroy;
  t.eventElementHandlers = eventElementHandlers;
  t.showEvents = showEvents;
  t.hideEvents = hideEvents;
  t.eventDrop = eventDrop;
  t.eventResize = eventResize;
  // t.title
  // t.start, t.end
  // t.visStart, t.visEnd
  
  
  // imports
  var defaultEventEnd = t.defaultEventEnd;
  var normalizeEvent = calendar.normalizeEvent; // in EventManager
  var reportEventChange = calendar.reportEventChange;
  
  
  // locals
  var eventsByID = {}; // eventID mapped to array of events (there can be multiple b/c of repeating events)
  var eventElementsByID = {}; // eventID mapped to array of jQuery elements
  var eventElementCouples = []; // array of objects, { event, element } // TODO: unify with segment system
  var options = calendar.options;
  
  
  
  function opt(name, viewNameOverride) {
      var v = options[name];
      if ($.isPlainObject(v)) {
          return smartProperty(v, viewNameOverride || viewName);
      }
      return v;
  }

  
  function trigger(name, thisObj) {
      return calendar.trigger.apply(
          calendar,
          [name, thisObj || t].concat(Array.prototype.slice.call(arguments, 2), [t])
      );
  }
  


  /* Event Editable Boolean Calculations
  ------------------------------------------------------------------------------*/

  
  function isEventDraggable(event) {
      var source = event.source || {};
      return firstDefined(
              event.startEditable,
              source.startEditable,
              opt('eventStartEditable'),
              event.editable,
              source.editable,
              opt('editable')
          )
          && !opt('disableDragging'); // deprecated
  }
  
  
  function isEventResizable(event) { // but also need to make sure the seg.isEnd == true
      var source = event.source || {};
      return firstDefined(
              event.durationEditable,
              source.durationEditable,
              opt('eventDurationEditable'),
              event.editable,
              source.editable,
              opt('editable')
          )
          && !opt('disableResizing'); // deprecated
  }
  
  
  
  /* Event Data
  ------------------------------------------------------------------------------*/
  
  
  function setEventData(events) { // events are already normalized at this point
      eventsByID = {};
      var i, len=events.length, event;
      for (i=0; i<len; i++) {
          event = events[i];
          if (eventsByID[event._id]) {
              eventsByID[event._id].push(event);
          }else{
              eventsByID[event._id] = [event];
          }
      }
  }


  function clearEventData() {
      eventsByID = {};
      eventElementsByID = {};
      eventElementCouples = [];
  }
  
  
  // returns a Date object for an event's end
  function eventEnd(event) {
      return event.end ? cloneDate(event.end) : defaultEventEnd(event);
  }
  
  
  
  /* Event Elements
  ------------------------------------------------------------------------------*/
  
  
  // report when view creates an element for an event
  function reportEventElement(event, element) {
      eventElementCouples.push({ event: event, element: element });
      if (eventElementsByID[event._id]) {
          eventElementsByID[event._id].push(element);
      }else{
          eventElementsByID[event._id] = [element];
      }
  }


  function triggerEventDestroy() {
      $.each(eventElementCouples, function(i, couple) {
          t.trigger('eventDestroy', couple.event, couple.event, couple.element);
      });
  }
  
  
  // attaches eventClick, eventMouseover, eventMouseout
  function eventElementHandlers(event, eventElement) {
      eventElement
          .click(function(ev) {
              if (!eventElement.hasClass('ui-draggable-dragging') &&
                  !eventElement.hasClass('ui-resizable-resizing')) {
                      return trigger('eventClick', this, event, ev);
                  }
          })
          .hover(
              function(ev) {
                  trigger('eventMouseover', this, event, ev);
              },
              function(ev) {
                  trigger('eventMouseout', this, event, ev);
              }
          );
      // TODO: don't fire eventMouseover/eventMouseout *while* dragging is occuring (on subject element)
      // TODO: same for resizing
  }
  
  
  function showEvents(event, exceptElement) {
      eachEventElement(event, exceptElement, 'show');
  }
  
  
  function hideEvents(event, exceptElement) {
      eachEventElement(event, exceptElement, 'hide');
  }
  
  
  function eachEventElement(event, exceptElement, funcName) {
      // NOTE: there may be multiple events per ID (repeating events)
      // and multiple segments per event
      var elements = eventElementsByID[event._id],
          i, len = elements.length;
      for (i=0; i<len; i++) {
          if (!exceptElement || elements[i][0] != exceptElement[0]) {
              elements[i][funcName]();
          }
      }
  }
  
  
  
  /* Event Modification Reporting
  ---------------------------------------------------------------------------------*/
  
  
  function eventDrop(e, event, dayDelta, minuteDelta, allDay, ev, ui) {
      var oldAllDay = event.allDay;
      var eventId = event._id;
      moveEvents(eventsByID[eventId], dayDelta, minuteDelta, allDay);
      trigger(
          'eventDrop',
          e,
          event,
          dayDelta,
          minuteDelta,
          allDay,
          function() {
              // TODO: investigate cases where this inverse technique might not work
              moveEvents(eventsByID[eventId], -dayDelta, -minuteDelta, oldAllDay);
              reportEventChange(eventId);
          },
          ev,
          ui
      );
      reportEventChange(eventId);
  }
  
  
  function eventResize(e, event, dayDelta, minuteDelta, ev, ui) {
      var eventId = event._id;
      elongateEvents(eventsByID[eventId], dayDelta, minuteDelta);
      trigger(
          'eventResize',
          e,
          event,
          dayDelta,
          minuteDelta,
          function() {
              // TODO: investigate cases where this inverse technique might not work
              elongateEvents(eventsByID[eventId], -dayDelta, -minuteDelta);
              reportEventChange(eventId);
          },
          ev,
          ui
      );
      reportEventChange(eventId);
  }
  
  
  
  /* Event Modification Math
  ---------------------------------------------------------------------------------*/
  
  
  function moveEvents(events, dayDelta, minuteDelta, allDay) {
      minuteDelta = minuteDelta || 0;
      for (var e, len=events.length, i=0; i<len; i++) {
          e = events[i];
          if (allDay !== undefined) {
              e.allDay = allDay;
          }
          addMinutes(addDays(e.start, dayDelta, true), minuteDelta);
          if (e.end) {
              e.end = addMinutes(addDays(e.end, dayDelta, true), minuteDelta);
          }
          normalizeEvent(e, options);
      }
  }
  
  
  function elongateEvents(events, dayDelta, minuteDelta) {
      minuteDelta = minuteDelta || 0;
      for (var e, len=events.length, i=0; i<len; i++) {
          e = events[i];
          e.end = addMinutes(addDays(eventEnd(e), dayDelta, true), minuteDelta);
          normalizeEvent(e, options);
      }
  }



  // ====================================================================================================
  // Utilities for day "cells"
  // ====================================================================================================
  // The "basic" views are completely made up of day cells.
  // The "agenda" views have day cells at the top "all day" slot.
  // This was the obvious common place to put these utilities, but they should be abstracted out into
  // a more meaningful class (like DayEventRenderer).
  // ====================================================================================================


  // For determining how a given "cell" translates into a "date":
  //
  // 1. Convert the "cell" (row and column) into a "cell offset" (the # of the cell, cronologically from the first).
  //    Keep in mind that column indices are inverted with isRTL. This is taken into account.
  //
  // 2. Convert the "cell offset" to a "day offset" (the # of days since the first visible day in the view).
  //
  // 3. Convert the "day offset" into a "date" (a JavaScript Date object).
  //
  // The reverse transformation happens when transforming a date into a cell.


  // exports
  t.isHiddenDay = isHiddenDay;
  t.skipHiddenDays = skipHiddenDays;
  t.getCellsPerWeek = getCellsPerWeek;
  t.dateToCell = dateToCell;
  t.dateToDayOffset = dateToDayOffset;
  t.dayOffsetToCellOffset = dayOffsetToCellOffset;
  t.cellOffsetToCell = cellOffsetToCell;
  t.cellToDate = cellToDate;
  t.cellToCellOffset = cellToCellOffset;
  t.cellOffsetToDayOffset = cellOffsetToDayOffset;
  t.dayOffsetToDate = dayOffsetToDate;
  t.rangeToSegments = rangeToSegments;


  // internals
  var hiddenDays = opt('hiddenDays') || []; // array of day-of-week indices that are hidden
  var isHiddenDayHash = []; // is the day-of-week hidden? (hash with day-of-week-index -> bool)
  var cellsPerWeek;
  var dayToCellMap = []; // hash from dayIndex -> cellIndex, for one week
  var cellToDayMap = []; // hash from cellIndex -> dayIndex, for one week
  var isRTL = opt('isRTL');


  // initialize important internal variables
  (function() {

      if (opt('weekends') === false) {
          hiddenDays.push(0, 6); // 0=sunday, 6=saturday
      }

      // Loop through a hypothetical week and determine which
      // days-of-week are hidden. Record in both hashes (one is the reverse of the other).
      for (var dayIndex=0, cellIndex=0; dayIndex<7; dayIndex++) {
          dayToCellMap[dayIndex] = cellIndex;
          isHiddenDayHash[dayIndex] = $.inArray(dayIndex, hiddenDays) != -1;
          if (!isHiddenDayHash[dayIndex]) {
              cellToDayMap[cellIndex] = dayIndex;
              cellIndex++;
          }
      }

      cellsPerWeek = cellIndex;
      if (!cellsPerWeek) {
          throw 'invalid hiddenDays'; // all days were hidden? bad.
      }

  })();


  // Is the current day hidden?
  // `day` is a day-of-week index (0-6), or a Date object
  function isHiddenDay(day) {
      if (typeof day == 'object') {
          day = day.getDay();
      }
      return isHiddenDayHash[day];
  }


  function getCellsPerWeek() {
      return cellsPerWeek;
  }


  // Keep incrementing the current day until it is no longer a hidden day.
  // If the initial value of `date` is not a hidden day, don't do anything.
  // Pass `isExclusive` as `true` if you are dealing with an end date.
  // `inc` defaults to `1` (increment one day forward each time)
  function skipHiddenDays(date, inc, isExclusive) {
      inc = inc || 1;
      while (
          isHiddenDayHash[ ( date.getDay() + (isExclusive ? inc : 0) + 7 ) % 7 ]
      ) {
          addDays(date, inc);
      }
  }


  //
  // TRANSFORMATIONS: cell -> cell offset -> day offset -> date
  //

  // cell -> date (combines all transformations)
  // Possible arguments:
  // - row, col
  // - { row:#, col: # }
  function cellToDate() {
      var cellOffset = cellToCellOffset.apply(null, arguments);
      var dayOffset = cellOffsetToDayOffset(cellOffset);
      var date = dayOffsetToDate(dayOffset);
      return date;
  }

  // cell -> cell offset
  // Possible arguments:
  // - row, col
  // - { row:#, col:# }
  function cellToCellOffset(row, col) {
      var colCnt = t.getColCnt();

      // rtl variables. wish we could pre-populate these. but where?
      var dis = isRTL ? -1 : 1;
      var dit = isRTL ? colCnt - 1 : 0;

      if (typeof row == 'object') {
          col = row.col;
          row = row.row;
      }
      var cellOffset = row * colCnt + (col * dis + dit); // column, adjusted for RTL (dis & dit)

      return cellOffset;
  }

  // cell offset -> day offset
  function cellOffsetToDayOffset(cellOffset) {
      var day0 = t.visStart.getDay(); // first date's day of week
      cellOffset += dayToCellMap[day0]; // normlize cellOffset to beginning-of-week
      return Math.floor(cellOffset / cellsPerWeek) * 7 // # of days from full weeks
          + cellToDayMap[ // # of days from partial last week
              (cellOffset % cellsPerWeek + cellsPerWeek) % cellsPerWeek // crazy math to handle negative cellOffsets
          ]
          - day0; // adjustment for beginning-of-week normalization
  }

  // day offset -> date (JavaScript Date object)
  function dayOffsetToDate(dayOffset) {
      var date = cloneDate(t.visStart);
      addDays(date, dayOffset);
      return date;
  }


  //
  // TRANSFORMATIONS: date -> day offset -> cell offset -> cell
  //

  // date -> cell (combines all transformations)
  function dateToCell(date) {
      var dayOffset = dateToDayOffset(date);
      var cellOffset = dayOffsetToCellOffset(dayOffset);
      var cell = cellOffsetToCell(cellOffset);
      return cell;
  }

  // date -> day offset
  function dateToDayOffset(date) {
      return dayDiff(date, t.visStart);
  }

  // day offset -> cell offset
  function dayOffsetToCellOffset(dayOffset) {
      var day0 = t.visStart.getDay(); // first date's day of week
      dayOffset += day0; // normalize dayOffset to beginning-of-week
      return Math.floor(dayOffset / 7) * cellsPerWeek // # of cells from full weeks
          + dayToCellMap[ // # of cells from partial last week
              (dayOffset % 7 + 7) % 7 // crazy math to handle negative dayOffsets
          ]
          - dayToCellMap[day0]; // adjustment for beginning-of-week normalization
  }

  // cell offset -> cell (object with row & col keys)
  function cellOffsetToCell(cellOffset) {
      var colCnt = t.getColCnt();

      // rtl variables. wish we could pre-populate these. but where?
      var dis = isRTL ? -1 : 1;
      var dit = isRTL ? colCnt - 1 : 0;

      var row = Math.floor(cellOffset / colCnt);
      var col = ((cellOffset % colCnt + colCnt) % colCnt) * dis + dit; // column, adjusted for RTL (dis & dit)
      return {
          row: row,
          col: col
      };
  }


  //
  // Converts a date range into an array of segment objects.
  // "Segments" are horizontal stretches of time, sliced up by row.
  // A segment object has the following properties:
  // - row
  // - cols
  // - isStart
  // - isEnd
  //
  function rangeToSegments(startDate, endDate) {
      var rowCnt = t.getRowCnt();
      var colCnt = t.getColCnt();
      var segments = []; // array of segments to return

      // day offset for given date range
      var rangeDayOffsetStart = dateToDayOffset(startDate);
      var rangeDayOffsetEnd = dateToDayOffset(endDate); // exclusive

      // first and last cell offset for the given date range
      // "last" implies inclusivity
      var rangeCellOffsetFirst = dayOffsetToCellOffset(rangeDayOffsetStart);
      var rangeCellOffsetLast = dayOffsetToCellOffset(rangeDayOffsetEnd) - 1;

      // loop through all the rows in the view
      for (var row=0; row<rowCnt; row++) {

          // first and last cell offset for the row
          var rowCellOffsetFirst = row * colCnt;
          var rowCellOffsetLast = rowCellOffsetFirst + colCnt - 1;

          // get the segment's cell offsets by constraining the range's cell offsets to the bounds of the row
          var segmentCellOffsetFirst = Math.max(rangeCellOffsetFirst, rowCellOffsetFirst);
          var segmentCellOffsetLast = Math.min(rangeCellOffsetLast, rowCellOffsetLast);

          // make sure segment's offsets are valid and in view
          if (segmentCellOffsetFirst <= segmentCellOffsetLast) {

              // translate to cells
              var segmentCellFirst = cellOffsetToCell(segmentCellOffsetFirst);
              var segmentCellLast = cellOffsetToCell(segmentCellOffsetLast);

              // view might be RTL, so order by leftmost column
              var cols = [ segmentCellFirst.col, segmentCellLast.col ].sort();

              // Determine if segment's first/last cell is the beginning/end of the date range.
              // We need to compare "day offset" because "cell offsets" are often ambiguous and
              // can translate to multiple days, and an edge case reveals itself when we the
              // range's first cell is hidden (we don't want isStart to be true).
              var isStart = cellOffsetToDayOffset(segmentCellOffsetFirst) == rangeDayOffsetStart;
              var isEnd = cellOffsetToDayOffset(segmentCellOffsetLast) + 1 == rangeDayOffsetEnd; // +1 for comparing exclusively

              segments.push({
                  row: row,
                  leftCol: cols[0],
                  rightCol: cols[1],
                  isStart: isStart,
                  isEnd: isEnd
              });
          }
      }

      return segments;
  }
  

}

;;

function DayEventRenderer() {
  var t = this;

  
  // exports
  t.renderDayEvents = renderDayEvents;
  t.draggableDayEvent = draggableDayEvent; // made public so that subclasses can override
  t.resizableDayEvent = resizableDayEvent; // "
  
  
  // imports
  var opt = t.opt;
  var trigger = t.trigger;
  var isEventDraggable = t.isEventDraggable;
  var isEventResizable = t.isEventResizable;
  var eventEnd = t.eventEnd;
  var reportEventElement = t.reportEventElement;
  var eventElementHandlers = t.eventElementHandlers;
  var showEvents = t.showEvents;
  var hideEvents = t.hideEvents;
  var eventDrop = t.eventDrop;
  var eventResize = t.eventResize;
  var getRowCnt = t.getRowCnt;
  var getColCnt = t.getColCnt;
  var getColWidth = t.getColWidth;
  var allDayRow = t.allDayRow; // TODO: rename
  var colLeft = t.colLeft;
  var colRight = t.colRight;
  var colContentLeft = t.colContentLeft;
  var colContentRight = t.colContentRight;
  var dateToCell = t.dateToCell;
  var getDaySegmentContainer = t.getDaySegmentContainer;
  var formatDates = t.calendar.formatDates;
  var renderDayOverlay = t.renderDayOverlay;
  var clearOverlays = t.clearOverlays;
  var clearSelection = t.clearSelection;
  var getHoverListener = t.getHoverListener;
  var rangeToSegments = t.rangeToSegments;
  var cellToDate = t.cellToDate;
  var cellToCellOffset = t.cellToCellOffset;
  var cellOffsetToDayOffset = t.cellOffsetToDayOffset;
  var dateToDayOffset = t.dateToDayOffset;
  var dayOffsetToCellOffset = t.dayOffsetToCellOffset;


  // Render `events` onto the calendar, attach mouse event handlers, and call the `eventAfterRender` callback for each.
  // Mouse event will be lazily applied, except if the event has an ID of `modifiedEventId`.
  // Can only be called when the event container is empty (because it wipes out all innerHTML).
  function renderDayEvents(events, modifiedEventId) {

      // do the actual rendering. Receive the intermediate "segment" data structures.
      var segments = _renderDayEvents(
          events,
          false, // don't append event elements
          true // set the heights of the rows
      );

      // report the elements to the View, for general drag/resize utilities
      segmentElementEach(segments, function(segment, element) {
          reportEventElement(segment.event, element);
      });

      // attach mouse handlers
      attachHandlers(segments, modifiedEventId);

      // call `eventAfterRender` callback for each event
      segmentElementEach(segments, function(segment, element) {
          trigger('eventAfterRender', segment.event, segment.event, element);
      });
  }


  // Render an event on the calendar, but don't report them anywhere, and don't attach mouse handlers.
  // Append this event element to the event container, which might already be populated with events.
  // If an event's segment will have row equal to `adjustRow`, then explicitly set its top coordinate to `adjustTop`.
  // This hack is used to maintain continuity when user is manually resizing an event.
  // Returns an array of DOM elements for the event.
  function renderTempDayEvent(event, adjustRow, adjustTop) {

      // actually render the event. `true` for appending element to container.
      // Recieve the intermediate "segment" data structures.
      var segments = _renderDayEvents(
          [ event ],
          true, // append event elements
          false // don't set the heights of the rows
      );

      var elements = [];

      // Adjust certain elements' top coordinates
      segmentElementEach(segments, function(segment, element) {
          if (segment.row === adjustRow) {
              element.css('top', adjustTop);
          }
          elements.push(element[0]); // accumulate DOM nodes
      });

      return elements;
  }


  // Render events onto the calendar. Only responsible for the VISUAL aspect.
  // Not responsible for attaching handlers or calling callbacks.
  // Set `doAppend` to `true` for rendering elements without clearing the existing container.
  // Set `doRowHeights` to allow setting the height of each row, to compensate for vertical event overflow.
  function _renderDayEvents(events, doAppend, doRowHeights) {

      // where the DOM nodes will eventually end up
      var finalContainer = getDaySegmentContainer();

      // the container where the initial HTML will be rendered.
      // If `doAppend`==true, uses a temporary container.
      var renderContainer = doAppend ? $("<div/>") : finalContainer;

      var segments = buildSegments(events);
      var html;
      var elements;

      // calculate the desired `left` and `width` properties on each segment object
      calculateHorizontals(segments);

      // build the HTML string. relies on `left` property
      html = buildHTML(segments);

      // render the HTML. innerHTML is considerably faster than jQuery's .html()
      renderContainer[0].innerHTML = html;

      // retrieve the individual elements
      elements = renderContainer.children();

      // if we were appending, and thus using a temporary container,
      // re-attach elements to the real container.
      if (doAppend) {
          finalContainer.append(elements);
      }

      // assigns each element to `segment.event`, after filtering them through user callbacks
      resolveElements(segments, elements);

      // Calculate the left and right padding+margin for each element.
      // We need this for setting each element's desired outer width, because of the W3C box model.
      // It's important we do this in a separate pass from acually setting the width on the DOM elements
      // because alternating reading/writing dimensions causes reflow for every iteration.
      segmentElementEach(segments, function(segment, element) {
          segment.hsides = hsides(element, true); // include margins = `true`
      });

      // Set the width of each element
      segmentElementEach(segments, function(segment, element) {
          element.width(
              Math.max(0, segment.outerWidth - segment.hsides)
          );
      });

      // Grab each element's outerHeight (setVerticals uses this).
      // To get an accurate reading, it's important to have each element's width explicitly set already.
      segmentElementEach(segments, function(segment, element) {
          segment.outerHeight = element.outerHeight(true); // include margins = `true`
      });

      // Set the top coordinate on each element (requires segment.outerHeight)
      setVerticals(segments, doRowHeights);

      return segments;
  }


  // Generate an array of "segments" for all events.
  function buildSegments(events) {
      var segments = [];
      for (var i=0; i<events.length; i++) {
          var eventSegments = buildSegmentsForEvent(events[i]);
          segments.push.apply(segments, eventSegments); // append an array to an array
      }
      return segments;
  }


  // Generate an array of segments for a single event.
  // A "segment" is the same data structure that View.rangeToSegments produces,
  // with the addition of the `event` property being set to reference the original event.
  function buildSegmentsForEvent(event) {
      var startDate = event.start;
      var endDate = exclEndDay(event);
      var segments = rangeToSegments(startDate, endDate);
      for (var i=0; i<segments.length; i++) {
          segments[i].event = event;
      }
      return segments;
  }


  // Sets the `left` and `outerWidth` property of each segment.
  // These values are the desired dimensions for the eventual DOM elements.
  function calculateHorizontals(segments) {
      var isRTL = opt('isRTL');
      for (var i=0; i<segments.length; i++) {
          var segment = segments[i];

          // Determine functions used for calulating the elements left/right coordinates,
          // depending on whether the view is RTL or not.
          // NOTE:
          // colLeft/colRight returns the coordinate butting up the edge of the cell.
          // colContentLeft/colContentRight is indented a little bit from the edge.
          var leftFunc = (isRTL ? segment.isEnd : segment.isStart) ? colContentLeft : colLeft;
          var rightFunc = (isRTL ? segment.isStart : segment.isEnd) ? colContentRight : colRight;

          var left = leftFunc(segment.leftCol);
          var right = rightFunc(segment.rightCol);
          segment.left = left;
          segment.outerWidth = right - left;
      }
  }


  // Build a concatenated HTML string for an array of segments
  function buildHTML(segments) {
      var html = '';
      for (var i=0; i<segments.length; i++) {
          html += buildHTMLForSegment(segments[i]);
      }
      return html;
  }


  // Build an HTML string for a single segment.
  // Relies on the following properties:
  // - `segment.event` (from `buildSegmentsForEvent`)
  // - `segment.left` (from `calculateHorizontals`)
  function buildHTMLForSegment(segment) {
      var html = '';
      var isRTL = opt('isRTL');
      var event = segment.event;
      var url = event.url;

      // generate the list of CSS classNames
      var classNames = [ 'fc-event', 'fc-event-hori' ];
      if (isEventDraggable(event)) {
          classNames.push('fc-event-draggable');
      }
      if (segment.isStart) {
          classNames.push('fc-event-start');
      }
      if (segment.isEnd) {
          classNames.push('fc-event-end');
      }
      // use the event's configured classNames
      // guaranteed to be an array via `normalizeEvent`
      classNames = classNames.concat(event.className);
      if (event.source) {
          // use the event's source's classNames, if specified
          classNames = classNames.concat(event.source.className || []);
      }

      // generate a semicolon delimited CSS string for any of the "skin" properties
      // of the event object (`backgroundColor`, `borderColor` and such)
      var skinCss = getSkinCss(event, opt);

      if (url) {
          html += "<a href='" + htmlEscape(url) + "'";
      }else{
          html += "<div";
      }
      html +=
          " class='" + classNames.join(' ') + "'" +
          " style=" +
              "'" +
              "position:absolute;" +
              "left:" + segment.left + "px;" +
              skinCss +
              "'" +
          ">" +
          "<div class='fc-event-inner'>";
      if (!event.allDay && segment.isStart) {
          html +=
              "<span class='fc-event-time'>" +
              htmlEscape(
                  formatDates(event.start, event.end, opt('timeFormat'))
              ) +
              "</span>";
      }
      html +=
          "<span class='fc-event-title'>" +
          htmlEscape(event.title || '') +
          "</span>" +
          "</div>";
      if (segment.isEnd && isEventResizable(event)) {
          html +=
              "<div class='ui-resizable-handle ui-resizable-" + (isRTL ? 'w' : 'e') + "'>" +
              "&nbsp;&nbsp;&nbsp;" + // makes hit area a lot better for IE6/7
              "</div>";
      }
      html += "</" + (url ? "a" : "div") + ">";

      // TODO:
      // When these elements are initially rendered, they will be briefly visibile on the screen,
      // even though their widths/heights are not set.
      // SOLUTION: initially set them as visibility:hidden ?

      return html;
  }


  // Associate each segment (an object) with an element (a jQuery object),
  // by setting each `segment.element`.
  // Run each element through the `eventRender` filter, which allows developers to
  // modify an existing element, supply a new one, or cancel rendering.
  function resolveElements(segments, elements) {
      for (var i=0; i<segments.length; i++) {
          var segment = segments[i];
          var event = segment.event;
          var element = elements.eq(i);

          // call the trigger with the original element
          var triggerRes = trigger('eventRender', event, event, element);

          if (triggerRes === false) {
              // if `false`, remove the event from the DOM and don't assign it to `segment.event`
              element.remove();
          }
          else {
              if (triggerRes && triggerRes !== true) {
                  // the trigger returned a new element, but not `true` (which means keep the existing element)

                  // re-assign the important CSS dimension properties that were already assigned in `buildHTMLForSegment`
                  triggerRes = $(triggerRes)
                      .css({
                          position: 'absolute',
                          left: segment.left
                      });

                  element.replaceWith(triggerRes);
                  element = triggerRes;
              }

              segment.element = element;
          }
      }
  }



  /* Top-coordinate Methods
  -------------------------------------------------------------------------------------------------*/


  // Sets the "top" CSS property for each element.
  // If `doRowHeights` is `true`, also sets each row's first cell to an explicit height,
  // so that if elements vertically overflow, the cell expands vertically to compensate.
  function setVerticals(segments, doRowHeights) {
      var rowContentHeights = calculateVerticals(segments); // also sets segment.top
      var rowContentElements = getRowContentElements(); // returns 1 inner div per row
      var rowContentTops = [];

      // Set each row's height by setting height of first inner div
      if (doRowHeights) {
          for (var i=0; i<rowContentElements.length; i++) {
              rowContentElements[i].height(rowContentHeights[i]);
          }
      }

      // Get each row's top, relative to the views's origin.
      // Important to do this after setting each row's height.
      for (var i=0; i<rowContentElements.length; i++) {
          rowContentTops.push(
              rowContentElements[i].position().top
          );
      }

      // Set each segment element's CSS "top" property.
      // Each segment object has a "top" property, which is relative to the row's top, but...
      segmentElementEach(segments, function(segment, element) {
          element.css(
              'top',
              rowContentTops[segment.row] + segment.top // ...now, relative to views's origin
          );
      });
  }


  // Calculate the "top" coordinate for each segment, relative to the "top" of the row.
  // Also, return an array that contains the "content" height for each row
  // (the height displaced by the vertically stacked events in the row).
  // Requires segments to have their `outerHeight` property already set.
  function calculateVerticals(segments) {
      var rowCnt = getRowCnt();
      var colCnt = getColCnt();
      var rowContentHeights = []; // content height for each row
      var segmentRows = buildSegmentRows(segments); // an array of segment arrays, one for each row

      for (var rowI=0; rowI<rowCnt; rowI++) {
          var segmentRow = segmentRows[rowI];

          // an array of running total heights for each column.
          // initialize with all zeros.
          var colHeights = [];
          for (var colI=0; colI<colCnt; colI++) {
              colHeights.push(0);
          }

          // loop through every segment
          for (var segmentI=0; segmentI<segmentRow.length; segmentI++) {
              var segment = segmentRow[segmentI];

              // find the segment's top coordinate by looking at the max height
              // of all the columns the segment will be in.
              segment.top = arrayMax(
                  colHeights.slice(
                      segment.leftCol,
                      segment.rightCol + 1 // make exclusive for slice
                  )
              );

              // adjust the columns to account for the segment's height
              for (var colI=segment.leftCol; colI<=segment.rightCol; colI++) {
                  colHeights[colI] = segment.top + segment.outerHeight;
              }
          }

          // the tallest column in the row should be the "content height"
          rowContentHeights.push(arrayMax(colHeights));
      }

      return rowContentHeights;
  }


  // Build an array of segment arrays, each representing the segments that will
  // be in a row of the grid, sorted by which event should be closest to the top.
  function buildSegmentRows(segments) {
      var rowCnt = getRowCnt();
      var segmentRows = [];
      var segmentI;
      var segment;
      var rowI;

      // group segments by row
      for (segmentI=0; segmentI<segments.length; segmentI++) {
          segment = segments[segmentI];
          rowI = segment.row;
          if (segment.element) { // was rendered?
              if (segmentRows[rowI]) {
                  // already other segments. append to array
                  segmentRows[rowI].push(segment);
              }
              else {
                  // first segment in row. create new array
                  segmentRows[rowI] = [ segment ];
              }
          }
      }

      // sort each row
      for (rowI=0; rowI<rowCnt; rowI++) {
          segmentRows[rowI] = sortSegmentRow(
              segmentRows[rowI] || [] // guarantee an array, even if no segments
          );
      }

      return segmentRows;
  }


  // Sort an array of segments according to which segment should appear closest to the top
  function sortSegmentRow(segments) {
      var sortedSegments = [];

      // build the subrow array
      var subrows = buildSegmentSubrows(segments);

      // flatten it
      for (var i=0; i<subrows.length; i++) {
          sortedSegments.push.apply(sortedSegments, subrows[i]); // append an array to an array
      }

      return sortedSegments;
  }


  // Take an array of segments, which are all assumed to be in the same row,
  // and sort into subrows.
  function buildSegmentSubrows(segments) {

      // Give preference to elements with certain criteria, so they have
      // a chance to be closer to the top.
      segments.sort(compareDaySegments);

      var subrows = [];
      for (var i=0; i<segments.length; i++) {
          var segment = segments[i];

          // loop through subrows, starting with the topmost, until the segment
          // doesn't collide with other segments.
          for (var j=0; j<subrows.length; j++) {
              if (!isDaySegmentCollision(segment, subrows[j])) {
                  break;
              }
          }
          // `j` now holds the desired subrow index
          if (subrows[j]) {
              subrows[j].push(segment);
          }
          else {
              subrows[j] = [ segment ];
          }
      }

      return subrows;
  }


  // Return an array of jQuery objects for the placeholder content containers of each row.
  // The content containers don't actually contain anything, but their dimensions should match
  // the events that are overlaid on top.
  function getRowContentElements() {
      var i;
      var rowCnt = getRowCnt();
      var rowDivs = [];
      for (i=0; i<rowCnt; i++) {
          rowDivs[i] = allDayRow(i)
              .find('div.fc-day-content > div');
      }
      return rowDivs;
  }



  /* Mouse Handlers
  ---------------------------------------------------------------------------------------------------*/
  // TODO: better documentation!


  function attachHandlers(segments, modifiedEventId) {
      var segmentContainer = getDaySegmentContainer();

      segmentElementEach(segments, function(segment, element, i) {
          var event = segment.event;
          if (event._id === modifiedEventId) {
              bindDaySeg(event, element, segment);
          }else{
              element[0]._fci = i; // for lazySegBind
          }
      });

      lazySegBind(segmentContainer, segments, bindDaySeg);
  }


  function bindDaySeg(event, eventElement, segment) {

      if (isEventDraggable(event)) {
          t.draggableDayEvent(event, eventElement, segment); // use `t` so subclasses can override
      }

      if (
          segment.isEnd && // only allow resizing on the final segment for an event
          isEventResizable(event)
      ) {
          t.resizableDayEvent(event, eventElement, segment); // use `t` so subclasses can override
      }

      // attach all other handlers.
      // needs to be after, because resizableDayEvent might stopImmediatePropagation on click
      eventElementHandlers(event, eventElement);
  }

  
  function draggableDayEvent(event, eventElement) {
      var hoverListener = getHoverListener();
      var dayDelta;
      eventElement.draggable({
          delay: 50,
          opacity: opt('dragOpacity'),
          revertDuration: opt('dragRevertDuration'),
          start: function(ev, ui) {
              trigger('eventDragStart', eventElement, event, ev, ui);
              hideEvents(event, eventElement);
              hoverListener.start(function(cell, origCell, rowDelta, colDelta) {
                  eventElement.draggable('option', 'revert', !cell || !rowDelta && !colDelta);
                  clearOverlays();
                  if (cell) {
                      var origDate = cellToDate(origCell);
                      var date = cellToDate(cell);
                      dayDelta = dayDiff(date, origDate);
                      renderDayOverlay(
                          addDays(cloneDate(event.start), dayDelta),
                          addDays(exclEndDay(event), dayDelta)
                      );
                  }else{
                      dayDelta = 0;
                  }
              }, ev, 'drag');
          },
          stop: function(ev, ui) {
              hoverListener.stop();
              clearOverlays();
              trigger('eventDragStop', eventElement, event, ev, ui);
              if (dayDelta) {
                  eventDrop(this, event, dayDelta, 0, event.allDay, ev, ui);
              }else{
                  eventElement.css('filter', ''); // clear IE opacity side-effects
                  showEvents(event, eventElement);
              }
          }
      });
  }

  
  function resizableDayEvent(event, element, segment) {
      var isRTL = opt('isRTL');
      var direction = isRTL ? 'w' : 'e';
      var handle = element.find('.ui-resizable-' + direction); // TODO: stop using this class because we aren't using jqui for this
      var isResizing = false;
      
      // TODO: look into using jquery-ui mouse widget for this stuff
      disableTextSelection(element); // prevent native <a> selection for IE
      element
          .mousedown(function(ev) { // prevent native <a> selection for others
              ev.preventDefault();
          })
          .click(function(ev) {
              if (isResizing) {
                  ev.preventDefault(); // prevent link from being visited (only method that worked in IE6)
                  ev.stopImmediatePropagation(); // prevent fullcalendar eventClick handler from being called
                                                 // (eventElementHandlers needs to be bound after resizableDayEvent)
              }
          });
      
      handle.mousedown(function(ev) {
          if (ev.which != 1) {
              return; // needs to be left mouse button
          }
          isResizing = true;
          var hoverListener = getHoverListener();
          var rowCnt = getRowCnt();
          var colCnt = getColCnt();
          var elementTop = element.css('top');
          var dayDelta;
          var helpers;
          var eventCopy = $.extend({}, event);
          var minCellOffset = dayOffsetToCellOffset( dateToDayOffset(event.start) );
          clearSelection();
          $('body')
              .css('cursor', direction + '-resize')
              .one('mouseup', mouseup);
          trigger('eventResizeStart', this, event, ev);
          hoverListener.start(function(cell, origCell) {
              if (cell) {

                  var origCellOffset = cellToCellOffset(origCell);
                  var cellOffset = cellToCellOffset(cell);

                  // don't let resizing move earlier than start date cell
                  cellOffset = Math.max(cellOffset, minCellOffset);

                  dayDelta =
                      cellOffsetToDayOffset(cellOffset) -
                      cellOffsetToDayOffset(origCellOffset);

                  if (dayDelta) {
                      eventCopy.end = addDays(eventEnd(event), dayDelta, true);
                      var oldHelpers = helpers;

                      helpers = renderTempDayEvent(eventCopy, segment.row, elementTop);
                      helpers = $(helpers); // turn array into a jQuery object

                      helpers.find('*').css('cursor', direction + '-resize');
                      if (oldHelpers) {
                          oldHelpers.remove();
                      }

                      hideEvents(event);
                  }
                  else {
                      if (helpers) {
                          showEvents(event);
                          helpers.remove();
                          helpers = null;
                      }
                  }
                  clearOverlays();
                  renderDayOverlay( // coordinate grid already rebuilt with hoverListener.start()
                      event.start,
                      addDays( exclEndDay(event), dayDelta )
                      // TODO: instead of calling renderDayOverlay() with dates,
                      // call _renderDayOverlay (or whatever) with cell offsets.
                  );
              }
          }, ev);
          
          function mouseup(ev) {
              trigger('eventResizeStop', this, event, ev);
              $('body').css('cursor', '');
              hoverListener.stop();
              clearOverlays();
              if (dayDelta) {
                  eventResize(this, event, dayDelta, 0, ev);
                  // event redraw will clear helpers
              }
              // otherwise, the drag handler already restored the old events
              
              setTimeout(function() { // make this happen after the element's click event
                  isResizing = false;
              },0);
          }
      });
  }
  

}



/* Generalized Segment Utilities
-------------------------------------------------------------------------------------------------*/


function isDaySegmentCollision(segment, otherSegments) {
  for (var i=0; i<otherSegments.length; i++) {
      var otherSegment = otherSegments[i];
      if (
          otherSegment.leftCol <= segment.rightCol &&
          otherSegment.rightCol >= segment.leftCol
      ) {
          return true;
      }
  }
  return false;
}


function segmentElementEach(segments, callback) { // TODO: use in AgendaView?
  for (var i=0; i<segments.length; i++) {
      var segment = segments[i];
      var element = segment.element;
      if (element) {
          callback(segment, element, i);
      }
  }
}


// A cmp function for determining which segments should appear higher up
function compareDaySegments(a, b) {
  return (b.rightCol - b.leftCol) - (a.rightCol - a.leftCol) || // put wider events first
      b.event.allDay - a.event.allDay || // if tie, put all-day events first (booleans cast to 0/1)
      a.event.start - b.event.start || // if a tie, sort by event start date
      (a.event.title || '').localeCompare(b.event.title) // if a tie, sort by event title
}


;;

//BUG: unselect needs to be triggered when events are dragged+dropped

function SelectionManager() {
  var t = this;
  
  
  // exports
  t.select = select;
  t.unselect = unselect;
  t.reportSelection = reportSelection;
  t.daySelectionMousedown = daySelectionMousedown;
  
  
  // imports
  var opt = t.opt;
  var trigger = t.trigger;
  var defaultSelectionEnd = t.defaultSelectionEnd;
  var renderSelection = t.renderSelection;
  var clearSelection = t.clearSelection;
  
  
  // locals
  var selected = false;



  // unselectAuto
  if (opt('selectable') && opt('unselectAuto')) {
      $(document).mousedown(function(ev) {
          var ignore = opt('unselectCancel');
          if (ignore) {
              if ($(ev.target).parents(ignore).length) { // could be optimized to stop after first match
                  return;
              }
          }
          unselect(ev);
      });
  }
  

  function select(startDate, endDate, allDay) {
      unselect();
      if (!endDate) {
          endDate = defaultSelectionEnd(startDate, allDay);
      }
      renderSelection(startDate, endDate, allDay);
      reportSelection(startDate, endDate, allDay);
  }
  
  
  function unselect(ev) {
      if (selected) {
          selected = false;
          clearSelection();
          trigger('unselect', null, ev);
      }
  }
  
  
  function reportSelection(startDate, endDate, allDay, ev) {
      selected = true;
      trigger('select', null, startDate, endDate, allDay, ev);
  }
  
  
  function daySelectionMousedown(ev) { // not really a generic manager method, oh well
      var cellToDate = t.cellToDate;
      var getIsCellAllDay = t.getIsCellAllDay;
      var hoverListener = t.getHoverListener();
      var reportDayClick = t.reportDayClick; // this is hacky and sort of weird
      if (ev.which == 1 && opt('selectable')) { // which==1 means left mouse button
          unselect(ev);
          var _mousedownElement = this;
          var dates;
          hoverListener.start(function(cell, origCell) { // TODO: maybe put cellToDate/getIsCellAllDay info in cell
              clearSelection();
              if (cell && getIsCellAllDay(cell)) {
                  dates = [ cellToDate(origCell), cellToDate(cell) ].sort(dateCompare);
                  renderSelection(dates[0], dates[1], true);
              }else{
                  dates = null;
              }
          }, ev);
          $(document).one('mouseup', function(ev) {
              hoverListener.stop();
              if (dates) {
                  if (+dates[0] == +dates[1]) {
                      reportDayClick(dates[0], true, ev);
                  }
                  reportSelection(dates[0], dates[1], true, ev);
              }
          });
      }
  }


}

;;

function OverlayManager() {
  var t = this;
  
  
  // exports
  t.renderOverlay = renderOverlay;
  t.clearOverlays = clearOverlays;
  
  
  // locals
  var usedOverlays = [];
  var unusedOverlays = [];
  
  
  function renderOverlay(rect, parent) {
      var e = unusedOverlays.shift();
      if (!e) {
          e = $("<div class='fc-cell-overlay' style='position:absolute;z-index:3'/>");
      }
      if (e[0].parentNode != parent[0]) {
          e.appendTo(parent);
      }
      usedOverlays.push(e.css(rect).show());
      return e;
  }
  

  function clearOverlays() {
      var e;
      while (e = usedOverlays.shift()) {
          unusedOverlays.push(e.hide().unbind());
      }
  }


}

;;

function CoordinateGrid(buildFunc) {

  var t = this;
  var rows;
  var cols;
  
  
  t.build = function() {
      rows = [];
      cols = [];
      buildFunc(rows, cols);
  };
  
  
  t.cell = function(x, y) {
      var rowCnt = rows.length;
      var colCnt = cols.length;
      var i, r=-1, c=-1;
      for (i=0; i<rowCnt; i++) {
          if (y >= rows[i][0] && y < rows[i][1]) {
              r = i;
              break;
          }
      }
      for (i=0; i<colCnt; i++) {
          if (x >= cols[i][0] && x < cols[i][1]) {
              c = i;
              break;
          }
      }
      return (r>=0 && c>=0) ? { row:r, col:c } : null;
  };
  
  
  t.rect = function(row0, col0, row1, col1, originElement) { // row1,col1 is inclusive
      var origin = originElement.offset();
      return {
          top: rows[row0][0] - origin.top,
          left: cols[col0][0] - origin.left,
          width: cols[col1][1] - cols[col0][0],
          height: rows[row1][1] - rows[row0][0]
      };
  };

}

;;

function HoverListener(coordinateGrid) {


  var t = this;
  var bindType;
  var change;
  var firstCell;
  var cell;
  
  
  t.start = function(_change, ev, _bindType) {
      change = _change;
      firstCell = cell = null;
      coordinateGrid.build();
      mouse(ev);
      bindType = _bindType || 'mousemove';
      $(document).bind(bindType, mouse);
  };
  
  
  function mouse(ev) {
      _fixUIEvent(ev); // see below
      var newCell = coordinateGrid.cell(ev.pageX, ev.pageY);
      if (!newCell != !cell || newCell && (newCell.row != cell.row || newCell.col != cell.col)) {
          if (newCell) {
              if (!firstCell) {
                  firstCell = newCell;
              }
              change(newCell, firstCell, newCell.row-firstCell.row, newCell.col-firstCell.col);
          }else{
              change(newCell, firstCell);
          }
          cell = newCell;
      }
  }
  
  
  t.stop = function() {
      $(document).unbind(bindType, mouse);
      return cell;
  };
  
  
}



// this fix was only necessary for jQuery UI 1.8.16 (and jQuery 1.7 or 1.7.1)
// upgrading to jQuery UI 1.8.17 (and using either jQuery 1.7 or 1.7.1) fixed the problem
// but keep this in here for 1.8.16 users
// and maybe remove it down the line

function _fixUIEvent(event) { // for issue 1168
  if (event.pageX === undefined) {
      event.pageX = event.originalEvent.pageX;
      event.pageY = event.originalEvent.pageY;
  }
}
;;

function HorizontalPositionCache(getElement) {

  var t = this,
      elements = {},
      lefts = {},
      rights = {};
      
  function e(i) {
      return elements[i] = elements[i] || getElement(i);
  }
  
  t.left = function(i) {
      return lefts[i] = lefts[i] === undefined ? e(i).position().left : lefts[i];
  };
  
  t.right = function(i) {
      return rights[i] = rights[i] === undefined ? t.left(i) + e(i).width() : rights[i];
  };
  
  t.clear = function() {
      elements = {};
      lefts = {};
      rights = {};
  };
  
}

;;

})(jQuery);

























// $(document).ready(function() {
//     var date = new Date();
//       var d = date.getDate();
//       var m = date.getMonth();
//       var y = date.getFullYear();
//       /*  className colors
//       className: default(transparent), important(red), chill(pink), success(green), info(blue)
//       */			  
//       /* initialize the external events
//       -----------------------------------------------------------------*/	
//       $('#external-events div.external-event').each(function() {		
//           // create an Event Object (http://arshaw.com/fullcalendar/docs/event_data/Event_Object/)
//           // it doesn't need to have a start or end
//           var eventObject = {
//               title: $.trim($(this).text()) // use the element's text as the event title
//           };			
//           // store the Event Object in the DOM element so we can get to it later
//           $(this).data('eventObject', eventObject);			
//           // make the event draggable using jQuery UI
//           $(this).draggable({
//               zIndex: 999,
//               revert: true,      // will cause the event to go back to its
//               revertDuration: 0  //  original position after the drag
//           });
          
//       });	
//       /************** initialize the calendar *********************
//       -----------------------------------------------------------------*/		
//       var calendar =  $('#calendar').fullCalendar({
//           header: {
//               left: 'title',
//               center: 'agendaDay,agendaWeek,month',
//               right: 'prev,next today'
//           },
//           editable: true,
//           firstDay: 1, //  1(Monday) this can be changed to 0(Sunday) for the USA system
//           selectable: true,
//           defaultView: 'month',			
//           axisFormat: 'h:mm',
//           columnFormat: {
//               month: 'ddd',    // Mon
//               week: 'ddd d', // Mon 7
//               day: 'dddd M/d',  // Monday 9/7
//               agendaDay: 'dddd d'
//           },
//           titleFormat: {
//               month: 'MMMM yyyy', // September 2009
//               week: "MMMM yyyy", // September 2009
//               day: 'MMMM yyyy'  // Tuesday, Sep 8, 2009
//           },
//           allDaySlot: false,//cambie a true
//           selectHelper: true,
//           dayClick: function (date, allDay, jsEvent, view) {
//               if (allDay) {
//                   // Clicked on the day number 
//                   calendar.fullCalendar('changeView', 'agendaDay'/* or 'basicDay' */)
//                       .fullCalendar('gotoDate', date.getFullYear(), date.getMonth(), date.getDate());
//               }
//           },
//           select: function (startDate, endDate, allDay) {
//               if (!allDay) {
//                   swal({
//                       input: 'text',
//                       title: 'Event title:',
//                       showCancelButton: true
//                   }).then((result) => {
//                       swal.resetDefaults();
//                       console.log("result: " + result);
//                       if (result) {
//                           calendar.fullCalendar('renderEvent',
//                               {
//                                   title: result,
//                                   start: startDate,
//                                   end: endDate,
//                                   allDay: allDay
//                               },
//                               true // make the event "stick"
//                           ); 
//                           swal({
//                               type: 'success',
//                               title: 'Agended!',
//                               html: 'Event title: ' + result
//                           }); 
//                       } else {
//                           swal({
//                               type: 'warning',
//                               title: 'Not Agended!',
//                               html: 'Title is empty! '
//                           })       
//                       }
//                       calendar.fullCalendar('unselect');
                                   
//                   });
//               }                 
//           },
//           droppable: true, // this allows things to be dropped onto the calendar !!!
//           drop: function(date, allDay) { // this function is called when something is dropped
          
//               // retrieve the dropped element's stored Event Object
//               var originalEventObject = $(this).data('eventObject');
              
//               // we need to copy it, so that multiple events don't have a reference to the same object
//               var copiedEventObject = $.extend({}, originalEventObject);
              
//               // assign it the date that was reported
//               copiedEventObject.start = date;
//               copiedEventObject.allDay = allDay;
              
//               // render the event on the calendar
//               // the last `true` argument determines if the event "sticks" (http://arshaw.com/fullcalendar/docs/event_rendering/renderEvent/)
//               $('#calendar').fullCalendar('renderEvent', copiedEventObject, true);
              
//               // is the "remove after drop" checkbox checked?
//               if ($('#drop-remove').is(':checked')) {
//                   // if so, remove the element from the "Draggable Events" list
//                   $(this).remove();
//               }
              
//           },
          
//           events: [
//               {
//                   title: 'All Day Event',
//                   start: new Date(y, m, 1)
//               },
//               {
//                   id: 999,
//                   title: 'Repeating Event',
//                   start: new Date(y, m, d-3, 16, 0),
//                   allDay: false,
//                   className: 'info'
//               },
//               {
//                   id: 999,
//                   title: 'Repeating Event',
//                   start: new Date(y, m, d+4, 16, 0),
//                   allDay: false,
//                   className: 'info'
//               },
//               {
//                   title: 'Meeting',
//                   start: new Date(y, m, d, 10, 30),
//                   allDay: false,
//                   className: 'important'
//               },
//               {
//                   title: 'Lunch',
//                   start: new Date(y, m, d, 12, 0),
//                   end: new Date(y, m, d, 14, 0),
//                   allDay: false,
//                   className: 'important'
//               },
//               {
//                   title: 'Birthday Party',
//                   start: new Date(y, m, d+1, 19, 0),
//                   end: new Date(y, m, d+1, 22, 30),
//                   allDay: false,
//               },
//               {
//                   title: 'Click for Google',
//                   start: new Date(y, m, 28),
//                   end: new Date(y, m, 29),
//                   url: 'http://google.com/',
//                   className: 'success'
//               }
//           ],			
//       });
      
      
//   });
//   /*!
//   * FullCalendar v1.6.4
//   * Docs & License: http://arshaw.com/fullcalendar/
//   * (c) 2013 Adam Shaw
//   */

//   /*
//   * Use fullcalendar.css for basic styling.
//   * For event drag & drop, requires jQuery UI draggable.
//   * For event resizing, requires jQuery UI resizable.
//   */
  
//   (function($, undefined) {


// ;;

// var defaults = {

//   // display
//   defaultView: 'month',
//   aspectRatio: 1.35,
//   header: {
//       left: 'title',
//       center: '',
//       right: 'today prev,next'
//   },
//   weekends: true,
//   weekNumbers: false,
//   weekNumberCalculation: 'iso',
//   weekNumberTitle: 'W',
  
//   // editing
//   //editable: false,
//   //disableDragging: false,
//   //disableResizing: false,
  
//   allDayDefault: true,
//   ignoreTimezone: true,
  
//   // event ajax
//   lazyFetching: true,
//   startParam: 'start',
//   endParam: 'end',
  
//   // time formats
//   titleFormat: {
//       month: 'MMMM yyyy',
//       week: "MMM d[ yyyy]{ '&#8212;'[ MMM] d yyyy}",
//       day: 'dddd, MMM d, yyyy'
//   },
//   columnFormat: {
//       month: 'ddd',
//       week: 'ddd M/d',
//       day: 'dddd M/d'
//   },
//   timeFormat: { // for event elements
//       '': 'h(:mm)t' // default
//   },
  
//   // locale
//   isRTL: false,
//   firstDay: 0,
//   monthNames: ['January','February','March','April','May','June','July','August','September','October','November','December'],
//   monthNamesShort: ['Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec'],
//   dayNames: ['Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday'],
//   dayNamesShort: ['Sun','Mon','Tue','Wed','Thu','Fri','Sat'],
//   buttonText: {
//       prev: "<span class='fc-text-arrow'>&lsaquo;</span>",
//       next: "<span class='fc-text-arrow'>&rsaquo;</span>",
//       prevYear: "<span class='fc-text-arrow'>&laquo;</span>",
//       nextYear: "<span class='fc-text-arrow'>&raquo;</span>",
//       today: 'today',
//       month: 'month',
//       week: 'week',
//       day: 'day'
//   },
  
//   // jquery-ui theming
//   theme: false,
//   buttonIcons: {
//       prev: 'circle-triangle-w',
//       next: 'circle-triangle-e'
//   },
  
//   //selectable: false,
//   unselectAuto: true,
  
//   dropAccept: '*',
  
//   handleWindowResize: true
  
// };

// // right-to-left defaults
// var rtlDefaults = {
//   header: {
//       left: 'next,prev today',
//       center: '',
//       right: 'title'
//   },
//   buttonText: {
//       prev: "<span class='fc-text-arrow'>&rsaquo;</span>",
//       next: "<span class='fc-text-arrow'>&lsaquo;</span>",
//       prevYear: "<span class='fc-text-arrow'>&raquo;</span>",
//       nextYear: "<span class='fc-text-arrow'>&laquo;</span>"
//   },
//   buttonIcons: {
//       prev: 'circle-triangle-e',
//       next: 'circle-triangle-w'
//   }
// };



// ;;

// var fc = $.fullCalendar = { version: "1.6.4" };
// var fcViews = fc.views = {};


// $.fn.fullCalendar = function(options) {


//   // method calling
//   if (typeof options == 'string') {
//       var args = Array.prototype.slice.call(arguments, 1);
//       var res;
//       this.each(function() {
//           var calendar = $.data(this, 'fullCalendar');
//           if (calendar && $.isFunction(calendar[options])) {
//               var r = calendar[options].apply(calendar, args);
//               if (res === undefined) {
//                   res = r;
//               }
//               if (options == 'destroy') {
//                   $.removeData(this, 'fullCalendar');
//               }
//           }
//       });
//       if (res !== undefined) {
//           return res;
//       }
//       return this;
//   }

//   options = options || {};
  
//   // would like to have this logic in EventManager, but needs to happen before options are recursively extended
//   var eventSources = options.eventSources || [];
//   delete options.eventSources;
//   if (options.events) {
//       eventSources.push(options.events);
//       delete options.events;
//   }
  

//   options = $.extend(true, {},
//       defaults,
//       (options.isRTL || options.isRTL===undefined && defaults.isRTL) ? rtlDefaults : {},
//       options
//   );
  
  
//   this.each(function(i, _element) {
//       var element = $(_element);
//       var calendar = new Calendar(element, options, eventSources);
//       element.data('fullCalendar', calendar); // TODO: look into memory leak implications
//       calendar.render();
//   });
  
  
//   return this;
  
// };


// // function for adding/overriding defaults
// function setDefaults(d) {
//   $.extend(true, defaults, d);
// }



// ;;


// function Calendar(element, options, eventSources) {
//   var t = this;
  
  
//   // exports
//   t.options = options;
//   t.render = render;
//   t.destroy = destroy;
//   t.refetchEvents = refetchEvents;
//   t.reportEvents = reportEvents;
//   t.reportEventChange = reportEventChange;
//   t.rerenderEvents = rerenderEvents;
//   t.changeView = changeView;
//   t.select = select;
//   t.unselect = unselect;
//   t.prev = prev;
//   t.next = next;
//   t.prevYear = prevYear;
//   t.nextYear = nextYear;
//   t.today = today;
//   t.gotoDate = gotoDate;
//   t.incrementDate = incrementDate;
//   t.formatDate = function(format, date) { return formatDate(format, date, options) };
//   t.formatDates = function(format, date1, date2) { return formatDates(format, date1, date2, options) };
//   t.getDate = getDate;
//   t.getView = getView;
//   t.option = option;
//   t.trigger = trigger;
  
  
//   // imports
//   EventManager.call(t, options, eventSources);
//   var isFetchNeeded = t.isFetchNeeded;
//   var fetchEvents = t.fetchEvents;
  
  
//   // locals
//   var _element = element[0];
//   var header;
//   var headerElement;
//   var content;
//   var tm; // for making theme classes
//   var currentView;
//   var elementOuterWidth;
//   var suggestedViewHeight;
//   var resizeUID = 0;
//   var ignoreWindowResize = 0;
//   var date = new Date();
//   var events = [];
//   var _dragElement;
  
  
  
//   /* Main Rendering
//   -----------------------------------------------------------------------------*/
  
  
//   setYMD(date, options.year, options.month, options.date);
  
  
//   function render(inc) {
//       if (!content) {
//           initialRender();
//       }
//       else if (elementVisible()) {
//           // mainly for the public API
//           calcSize();
//           _renderView(inc);
//       }
//   }
  
  
//   function initialRender() {
//       tm = options.theme ? 'ui' : 'fc';
//       element.addClass('fc');
//       if (options.isRTL) {
//           element.addClass('fc-rtl');
//       }
//       else {
//           element.addClass('fc-ltr');
//       }
//       if (options.theme) {
//           element.addClass('ui-widget');
//       }

//       content = $("<div class='fc-content' style='position:relative'/>")
//           .prependTo(element);

//       header = new Header(t, options);
//       headerElement = header.render();
//       if (headerElement) {
//           element.prepend(headerElement);
//       }

//       changeView(options.defaultView);

//       if (options.handleWindowResize) {
//           $(window).resize(windowResize);
//       }

//       // needed for IE in a 0x0 iframe, b/c when it is resized, never triggers a windowResize
//       if (!bodyVisible()) {
//           lateRender();
//       }
//   }
  
  
//   // called when we know the calendar couldn't be rendered when it was initialized,
//   // but we think it's ready now
//   function lateRender() {
//       setTimeout(function() { // IE7 needs this so dimensions are calculated correctly
//           if (!currentView.start && bodyVisible()) { // !currentView.start makes sure this never happens more than once
//               renderView();
//           }
//       },0);
//   }
  
  
//   function destroy() {

//       if (currentView) {
//           trigger('viewDestroy', currentView, currentView, currentView.element);
//           currentView.triggerEventDestroy();
//       }

//       $(window).unbind('resize', windowResize);

//       header.destroy();
//       content.remove();
//       element.removeClass('fc fc-rtl ui-widget');
//   }
  
  
//   function elementVisible() {
//       return element.is(':visible');
//   }
  
  
//   function bodyVisible() {
//       return $('body').is(':visible');
//   }
  
  
  
//   /* View Rendering
//   -----------------------------------------------------------------------------*/
  

//   function changeView(newViewName) {
//       if (!currentView || newViewName != currentView.name) {
//           _changeView(newViewName);
//       }
//   }


//   function _changeView(newViewName) {
//       ignoreWindowResize++;

//       if (currentView) {
//           trigger('viewDestroy', currentView, currentView, currentView.element);
//           unselect();
//           currentView.triggerEventDestroy(); // trigger 'eventDestroy' for each event
//           freezeContentHeight();
//           currentView.element.remove();
//           header.deactivateButton(currentView.name);
//       }

//       header.activateButton(newViewName);

//       currentView = new fcViews[newViewName](
//           $("<div class='fc-view fc-view-" + newViewName + "' style='position:relative'/>")
//               .appendTo(content),
//           t // the calendar object
//       );

//       renderView();
//       unfreezeContentHeight();

//       ignoreWindowResize--;
//   }


//   function renderView(inc) {
//       if (
//           !currentView.start || // never rendered before
//           inc || date < currentView.start || date >= currentView.end // or new date range
//       ) {
//           if (elementVisible()) {
//               _renderView(inc);
//           }
//       }
//   }


//   function _renderView(inc) { // assumes elementVisible
//       ignoreWindowResize++;

//       if (currentView.start) { // already been rendered?
//           trigger('viewDestroy', currentView, currentView, currentView.element);
//           unselect();
//           clearEvents();
//       }

//       freezeContentHeight();
//       currentView.render(date, inc || 0); // the view's render method ONLY renders the skeleton, nothing else
//       setSize();
//       unfreezeContentHeight();
//       (currentView.afterRender || noop)();

//       updateTitle();
//       updateTodayButton();

//       trigger('viewRender', currentView, currentView, currentView.element);
//       currentView.trigger('viewDisplay', _element); // deprecated

//       ignoreWindowResize--;

//       getAndRenderEvents();
//   }
  
  

//   /* Resizing
//   -----------------------------------------------------------------------------*/
  
  
//   function updateSize() {
//       if (elementVisible()) {
//           unselect();
//           clearEvents();
//           calcSize();
//           setSize();
//           renderEvents();
//       }
//   }
  
  
//   function calcSize() { // assumes elementVisible
//       if (options.contentHeight) {
//           suggestedViewHeight = options.contentHeight;
//       }
//       else if (options.height) {
//           suggestedViewHeight = options.height - (headerElement ? headerElement.height() : 0) - vsides(content);
//       }
//       else {
//           suggestedViewHeight = Math.round(content.width() / Math.max(options.aspectRatio, .5));
//       }
//   }
  
  
//   function setSize() { // assumes elementVisible

//       if (suggestedViewHeight === undefined) {
//           calcSize(); // for first time
//               // NOTE: we don't want to recalculate on every renderView because
//               // it could result in oscillating heights due to scrollbars.
//       }

//       ignoreWindowResize++;
//       currentView.setHeight(suggestedViewHeight);
//       currentView.setWidth(content.width());
//       ignoreWindowResize--;

//       elementOuterWidth = element.outerWidth();
//   }
  
  
//   function windowResize() {
//       if (!ignoreWindowResize) {
//           if (currentView.start) { // view has already been rendered
//               var uid = ++resizeUID;
//               setTimeout(function() { // add a delay
//                   if (uid == resizeUID && !ignoreWindowResize && elementVisible()) {
//                       if (elementOuterWidth != (elementOuterWidth = element.outerWidth())) {
//                           ignoreWindowResize++; // in case the windowResize callback changes the height
//                           updateSize();
//                           currentView.trigger('windowResize', _element);
//                           ignoreWindowResize--;
//                       }
//                   }
//               }, 200);
//           }else{
//               // calendar must have been initialized in a 0x0 iframe that has just been resized
//               lateRender();
//           }
//       }
//   }
  
  
  
//   /* Event Fetching/Rendering
//   -----------------------------------------------------------------------------*/
//   // TODO: going forward, most of this stuff should be directly handled by the view


//   function refetchEvents() { // can be called as an API method
//       clearEvents();
//       fetchAndRenderEvents();
//   }


//   function rerenderEvents(modifiedEventID) { // can be called as an API method
//       clearEvents();
//       renderEvents(modifiedEventID);
//   }


//   function renderEvents(modifiedEventID) { // TODO: remove modifiedEventID hack
//       if (elementVisible()) {
//           currentView.setEventData(events); // for View.js, TODO: unify with renderEvents
//           currentView.renderEvents(events, modifiedEventID); // actually render the DOM elements
//           currentView.trigger('eventAfterAllRender');
//       }
//   }


//   function clearEvents() {
//       currentView.triggerEventDestroy(); // trigger 'eventDestroy' for each event
//       currentView.clearEvents(); // actually remove the DOM elements
//       currentView.clearEventData(); // for View.js, TODO: unify with clearEvents
//   }
  

//   function getAndRenderEvents() {
//       if (!options.lazyFetching || isFetchNeeded(currentView.visStart, currentView.visEnd)) {
//           fetchAndRenderEvents();
//       }
//       else {
//           renderEvents();
//       }
//   }


//   function fetchAndRenderEvents() {
//       fetchEvents(currentView.visStart, currentView.visEnd);
//           // ... will call reportEvents
//           // ... which will call renderEvents
//   }

  
//   // called when event data arrives
//   function reportEvents(_events) {
//       events = _events;
//       renderEvents();
//   }


//   // called when a single event's data has been changed
//   function reportEventChange(eventID) {
//       rerenderEvents(eventID);
//   }



//   /* Header Updating
//   -----------------------------------------------------------------------------*/


//   function updateTitle() {
//       header.updateTitle(currentView.title);
//   }


//   function updateTodayButton() {
//       var today = new Date();
//       if (today >= currentView.start && today < currentView.end) {
//           header.disableButton('today');
//       }
//       else {
//           header.enableButton('today');
//       }
//   }
  


//   /* Selection
//   -----------------------------------------------------------------------------*/
  

//   function select(start, end, allDay) {
//       currentView.select(start, end, allDay===undefined ? true : allDay);
//   }
  

//   function unselect() { // safe to be called before renderView
//       if (currentView) {
//           currentView.unselect();
//       }
//   }
  
  
  
//   /* Date
//   -----------------------------------------------------------------------------*/
  
  
//   function prev() {
//       renderView(-1);
//   }
  
  
//   function next() {
//       renderView(1);
//   }
  
  
//   function prevYear() {
//       addYears(date, -1);
//       renderView();
//   }
  
  
//   function nextYear() {
//       addYears(date, 1);
//       renderView();
//   }
  
  
//   function today() {
//       date = new Date();
//       renderView();
//   }
  
  
//   function gotoDate(year, month, dateOfMonth) {
//       if (year instanceof Date) {
//           date = cloneDate(year); // provided 1 argument, a Date
//       }else{
//           setYMD(date, year, month, dateOfMonth);
//       }
//       renderView();
//   }
  
  
//   function incrementDate(years, months, days) {
//       if (years !== undefined) {
//           addYears(date, years);
//       }
//       if (months !== undefined) {
//           addMonths(date, months);
//       }
//       if (days !== undefined) {
//           addDays(date, days);
//       }
//       renderView();
//   }
  
  
//   function getDate() {
//       return cloneDate(date);
//   }



//   /* Height "Freezing"
//   -----------------------------------------------------------------------------*/


//   function freezeContentHeight() {
//       content.css({
//           width: '100%',
//           height: content.height(),
//           overflow: 'hidden'
//       });
//   }


//   function unfreezeContentHeight() {
//       content.css({
//           width: '',
//           height: '',
//           overflow: ''
//       });
//   }
  
  
  
//   /* Misc
//   -----------------------------------------------------------------------------*/
  
  
//   function getView() {
//       return currentView;
//   }
  
  
//   function option(name, value) {
//       if (value === undefined) {
//           return options[name];
//       }
//       if (name == 'height' || name == 'contentHeight' || name == 'aspectRatio') {
//           options[name] = value;
//           updateSize();
//       }
//   }
  
  
//   function trigger(name, thisObj) {
//       if (options[name]) {
//           return options[name].apply(
//               thisObj || _element,
//               Array.prototype.slice.call(arguments, 2)
//           );
//       }
//   }
  
  
  
//   /* External Dragging
//   ------------------------------------------------------------------------*/
  
//   if (options.droppable) {
//       $(document)
//           .bind('dragstart', function(ev, ui) {
//               var _e = ev.target;
//               var e = $(_e);
//               if (!e.parents('.fc').length) { // not already inside a calendar
//                   var accept = options.dropAccept;
//                   if ($.isFunction(accept) ? accept.call(_e, e) : e.is(accept)) {
//                       _dragElement = _e;
//                       currentView.dragStart(_dragElement, ev, ui);
//                   }
//               }
//           })
//           .bind('dragstop', function(ev, ui) {
//               if (_dragElement) {
//                   currentView.dragStop(_dragElement, ev, ui);
//                   _dragElement = null;
//               }
//           });
//   }
  

// }

// ;;

// function Header(calendar, options) {
//   var t = this;
  
  
//   // exports
//   t.render = render;
//   t.destroy = destroy;
//   t.updateTitle = updateTitle;
//   t.activateButton = activateButton;
//   t.deactivateButton = deactivateButton;
//   t.disableButton = disableButton;
//   t.enableButton = enableButton;
  
  
//   // locals
//   var element = $([]);
//   var tm;
  


//   function render() {
//       tm = options.theme ? 'ui' : 'fc';
//       var sections = options.header;
//       if (sections) {
//           element = $("<table class='fc-header' style='width:100%'/>")
//               .append(
//                   $("<tr/>")
//                       .append(renderSection('left'))
//                       .append(renderSection('center'))
//                       .append(renderSection('right'))
//               );
//           return element;
//       }
//   }
  
  
//   function destroy() {
//       element.remove();
//   }
  
  
//   function renderSection(position) {
//       var e = $("<td class='fc-header-" + position + "'/>");
//       var buttonStr = options.header[position];
//       if (buttonStr) {
//           $.each(buttonStr.split(' '), function(i) {
//               if (i > 0) {
//                   e.append("<span class='fc-header-space'/>");
//               }
//               var prevButton;
//               $.each(this.split(','), function(j, buttonName) {
//                   if (buttonName == 'title') {
//                       e.append("<span class='fc-header-title'><h2>&nbsp;</h2></span>");
//                       if (prevButton) {
//                           prevButton.addClass(tm + '-corner-right');
//                       }
//                       prevButton = null;
//                   }else{
//                       var buttonClick;
//                       if (calendar[buttonName]) {
//                           buttonClick = calendar[buttonName]; // calendar method
//                       }
//                       else if (fcViews[buttonName]) {
//                           buttonClick = function() {
//                               button.removeClass(tm + '-state-hover'); // forget why
//                               calendar.changeView(buttonName);
//                           };
//                       }
//                       if (buttonClick) {
//                           var icon = options.theme ? smartProperty(options.buttonIcons, buttonName) : null; // why are we using smartProperty here?
//                           var text = smartProperty(options.buttonText, buttonName); // why are we using smartProperty here?
//                           var button = $(
//                               "<span class='fc-button fc-button-" + buttonName + " " + tm + "-state-default'>" +
//                                   (icon ?
//                                       "<span class='fc-icon-wrap'>" +
//                                           "<span class='ui-icon ui-icon-" + icon + "'/>" +
//                                       "</span>" :
//                                       text
//                                       ) +
//                               "</span>"
//                               )
//                               .click(function() {
//                                   if (!button.hasClass(tm + '-state-disabled')) {
//                                       buttonClick();
//                                   }
//                               })
//                               .mousedown(function() {
//                                   button
//                                       .not('.' + tm + '-state-active')
//                                       .not('.' + tm + '-state-disabled')
//                                       .addClass(tm + '-state-down');
//                               })
//                               .mouseup(function() {
//                                   button.removeClass(tm + '-state-down');
//                               })
//                               .hover(
//                                   function() {
//                                       button
//                                           .not('.' + tm + '-state-active')
//                                           .not('.' + tm + '-state-disabled')
//                                           .addClass(tm + '-state-hover');
//                                   },
//                                   function() {
//                                       button
//                                           .removeClass(tm + '-state-hover')
//                                           .removeClass(tm + '-state-down');
//                                   }
//                               )
//                               .appendTo(e);
//                           disableTextSelection(button);
//                           if (!prevButton) {
//                               button.addClass(tm + '-corner-left');
//                           }
//                           prevButton = button;
//                       }
//                   }
//               });
//               if (prevButton) {
//                   prevButton.addClass(tm + '-corner-right');
//               }
//           });
//       }
//       return e;
//   }
  
  
//   function updateTitle(html) {
//       element.find('h2')
//           .html(html);
//   }
  
  
//   function activateButton(buttonName) {
//       element.find('span.fc-button-' + buttonName)
//           .addClass(tm + '-state-active');
//   }
  
  
//   function deactivateButton(buttonName) {
//       element.find('span.fc-button-' + buttonName)
//           .removeClass(tm + '-state-active');
//   }
  
  
//   function disableButton(buttonName) {
//       element.find('span.fc-button-' + buttonName)
//           .addClass(tm + '-state-disabled');
//   }
  
  
//   function enableButton(buttonName) {
//       element.find('span.fc-button-' + buttonName)
//           .removeClass(tm + '-state-disabled');
//   }


// }

// ;;

// fc.sourceNormalizers = [];
// fc.sourceFetchers = [];

// var ajaxDefaults = {
//   dataType: 'json',
//   cache: false
// };

// var eventGUID = 1;


// function EventManager(options, _sources) {
//   var t = this;
  
  
//   // exports
//   t.isFetchNeeded = isFetchNeeded;
//   t.fetchEvents = fetchEvents;
//   t.addEventSource = addEventSource;
//   t.removeEventSource = removeEventSource;
//   t.updateEvent = updateEvent;
//   t.renderEvent = renderEvent;
//   t.removeEvents = removeEvents;
//   t.clientEvents = clientEvents;
//   t.normalizeEvent = normalizeEvent;
  
  
//   // imports
//   var trigger = t.trigger;
//   var getView = t.getView;
//   var reportEvents = t.reportEvents;
  
  
//   // locals
//   var stickySource = { events: [] };
//   var sources = [ stickySource ];
//   var rangeStart, rangeEnd;
//   var currentFetchID = 0;
//   var pendingSourceCnt = 0;
//   var loadingLevel = 0;
//   var cache = [];
  
  
//   for (var i=0; i<_sources.length; i++) {
//       _addEventSource(_sources[i]);
//   }
  
  
  
//   /* Fetching
//   -----------------------------------------------------------------------------*/
  
  
//   function isFetchNeeded(start, end) {
//       return !rangeStart || start < rangeStart || end > rangeEnd;
//   }
  
  
//   function fetchEvents(start, end) {
//       rangeStart = start;
//       rangeEnd = end;
//       cache = [];
//       var fetchID = ++currentFetchID;
//       var len = sources.length;
//       pendingSourceCnt = len;
//       for (var i=0; i<len; i++) {
//           fetchEventSource(sources[i], fetchID);
//       }
//   }
  
  
//   function fetchEventSource(source, fetchID) {
//       _fetchEventSource(source, function(events) {
//           if (fetchID == currentFetchID) {
//               if (events) {

//                   if (options.eventDataTransform) {
//                       events = $.map(events, options.eventDataTransform);
//                   }
//                   if (source.eventDataTransform) {
//                       events = $.map(events, source.eventDataTransform);
//                   }
//                   // TODO: this technique is not ideal for static array event sources.
//                   //  For arrays, we'll want to process all events right in the beginning, then never again.
              
//                   for (var i=0; i<events.length; i++) {
//                       events[i].source = source;
//                       normalizeEvent(events[i]);
//                   }
//                   cache = cache.concat(events);
//               }
//               pendingSourceCnt--;
//               if (!pendingSourceCnt) {
//                   reportEvents(cache);
//               }
//           }
//       });
//   }
  
  
//   function _fetchEventSource(source, callback) {
//       var i;
//       var fetchers = fc.sourceFetchers;
//       var res;
//       for (i=0; i<fetchers.length; i++) {
//           res = fetchers[i](source, rangeStart, rangeEnd, callback);
//           if (res === true) {
//               // the fetcher is in charge. made its own async request
//               return;
//           }
//           else if (typeof res == 'object') {
//               // the fetcher returned a new source. process it
//               _fetchEventSource(res, callback);
//               return;
//           }
//       }
//       var events = source.events;
//       if (events) {
//           if ($.isFunction(events)) {
//               pushLoading();
//               events(cloneDate(rangeStart), cloneDate(rangeEnd), function(events) {
//                   callback(events);
//                   popLoading();
//               });
//           }
//           else if ($.isArray(events)) {
//               callback(events);
//           }
//           else {
//               callback();
//           }
//       }else{
//           var url = source.url;
//           if (url) {
//               var success = source.success;
//               var error = source.error;
//               var complete = source.complete;

//               // retrieve any outbound GET/POST $.ajax data from the options
//               var customData;
//               if ($.isFunction(source.data)) {
//                   // supplied as a function that returns a key/value object
//                   customData = source.data();
//               }
//               else {
//                   // supplied as a straight key/value object
//                   customData = source.data;
//               }

//               // use a copy of the custom data so we can modify the parameters
//               // and not affect the passed-in object.
//               var data = $.extend({}, customData || {});

//               var startParam = firstDefined(source.startParam, options.startParam);
//               var endParam = firstDefined(source.endParam, options.endParam);
//               if (startParam) {
//                   data[startParam] = Math.round(+rangeStart / 1000);
//               }
//               if (endParam) {
//                   data[endParam] = Math.round(+rangeEnd / 1000);
//               }

//               pushLoading();
//               $.ajax($.extend({}, ajaxDefaults, source, {
//                   data: data,
//                   success: function(events) {
//                       events = events || [];
//                       var res = applyAll(success, this, arguments);
//                       if ($.isArray(res)) {
//                           events = res;
//                       }
//                       callback(events);
//                   },
//                   error: function() {
//                       applyAll(error, this, arguments);
//                       callback();
//                   },
//                   complete: function() {
//                       applyAll(complete, this, arguments);
//                       popLoading();
//                   }
//               }));
//           }else{
//               callback();
//           }
//       }
//   }
  
  
  
//   /* Sources
//   -----------------------------------------------------------------------------*/
  

//   function addEventSource(source) {
//       source = _addEventSource(source);
//       if (source) {
//           pendingSourceCnt++;
//           fetchEventSource(source, currentFetchID); // will eventually call reportEvents
//       }
//   }
  
  
//   function _addEventSource(source) {
//       if ($.isFunction(source) || $.isArray(source)) {
//           source = { events: source };
//       }
//       else if (typeof source == 'string') {
//           source = { url: source };
//       }
//       if (typeof source == 'object') {
//           normalizeSource(source);
//           sources.push(source);
//           return source;
//       }
//   }
  

//   function removeEventSource(source) {
//       sources = $.grep(sources, function(src) {
//           return !isSourcesEqual(src, source);
//       });
//       // remove all client events from that source
//       cache = $.grep(cache, function(e) {
//           return !isSourcesEqual(e.source, source);
//       });
//       reportEvents(cache);
//   }
  
  
  
//   /* Manipulation
//   -----------------------------------------------------------------------------*/
  
  
//   function updateEvent(event) { // update an existing event
//       var i, len = cache.length, e,
//           defaultEventEnd = getView().defaultEventEnd, // getView???
//           startDelta = event.start - event._start,
//           endDelta = event.end ?
//               (event.end - (event._end || defaultEventEnd(event))) // event._end would be null if event.end
//               : 0;                                                      // was null and event was just resized
//       for (i=0; i<len; i++) {
//           e = cache[i];
//           if (e._id == event._id && e != event) {
//               e.start = new Date(+e.start + startDelta);
//               if (event.end) {
//                   if (e.end) {
//                       e.end = new Date(+e.end + endDelta);
//                   }else{
//                       e.end = new Date(+defaultEventEnd(e) + endDelta);
//                   }
//               }else{
//                   e.end = null;
//               }
//               e.title = event.title;
//               e.url = event.url;
//               e.allDay = event.allDay;
//               e.className = event.className;
//               e.editable = event.editable;
//               e.color = event.color;
//               e.backgroundColor = event.backgroundColor;
//               e.borderColor = event.borderColor;
//               e.textColor = event.textColor;
//               normalizeEvent(e);
//           }
//       }
//       normalizeEvent(event);
//       reportEvents(cache);
//   }
  
  
//   function renderEvent(event, stick) {
//       normalizeEvent(event);
//       if (!event.source) {
//           if (stick) {
//               stickySource.events.push(event);
//               event.source = stickySource;
//           }
//           cache.push(event);
//       }
//       reportEvents(cache);
//   }
  
  
//   function removeEvents(filter) {
//       if (!filter) { // remove all
//           cache = [];
//           // clear all array sources
//           for (var i=0; i<sources.length; i++) {
//               if ($.isArray(sources[i].events)) {
//                   sources[i].events = [];
//               }
//           }
//       }else{
//           if (!$.isFunction(filter)) { // an event ID
//               var id = filter + '';
//               filter = function(e) {
//                   return e._id == id;
//               };
//           }
//           cache = $.grep(cache, filter, true);
//           // remove events from array sources
//           for (var i=0; i<sources.length; i++) {
//               if ($.isArray(sources[i].events)) {
//                   sources[i].events = $.grep(sources[i].events, filter, true);
//               }
//           }
//       }
//       reportEvents(cache);
//   }
  
  
//   function clientEvents(filter) {
//       if ($.isFunction(filter)) {
//           return $.grep(cache, filter);
//       }
//       else if (filter) { // an event ID
//           filter += '';
//           return $.grep(cache, function(e) {
//               return e._id == filter;
//           });
//       }
//       return cache; // else, return all
//   }
  
  
  
//   /* Loading State
//   -----------------------------------------------------------------------------*/
  
  
//   function pushLoading() {
//       if (!loadingLevel++) {
//           trigger('loading', null, true, getView());
//       }
//   }
  
  
//   function popLoading() {
//       if (!--loadingLevel) {
//           trigger('loading', null, false, getView());
//       }
//   }
  
  
  
//   /* Event Normalization
//   -----------------------------------------------------------------------------*/
  
  
//   function normalizeEvent(event) {
//       var source = event.source || {};
//       var ignoreTimezone = firstDefined(source.ignoreTimezone, options.ignoreTimezone);
//       event._id = event._id || (event.id === undefined ? '_fc' + eventGUID++ : event.id + '');
//       if (event.date) {
//           if (!event.start) {
//               event.start = event.date;
//           }
//           delete event.date;
//       }
//       event._start = cloneDate(event.start = parseDate(event.start, ignoreTimezone));
//       event.end = parseDate(event.end, ignoreTimezone);
//       if (event.end && event.end <= event.start) {
//           event.end = null;
//       }
//       event._end = event.end ? cloneDate(event.end) : null;
//       if (event.allDay === undefined) {
//           event.allDay = firstDefined(source.allDayDefault, options.allDayDefault);
//       }
//       if (event.className) {
//           if (typeof event.className == 'string') {
//               event.className = event.className.split(/\s+/);
//           }
//       }else{
//           event.className = [];
//       }
//       // TODO: if there is no start date, return false to indicate an invalid event
//   }
  
  
  
//   /* Utils
//   ------------------------------------------------------------------------------*/
  
  
//   function normalizeSource(source) {
//       if (source.className) {
//           // TODO: repeat code, same code for event classNames
//           if (typeof source.className == 'string') {
//               source.className = source.className.split(/\s+/);
//           }
//       }else{
//           source.className = [];
//       }
//       var normalizers = fc.sourceNormalizers;
//       for (var i=0; i<normalizers.length; i++) {
//           normalizers[i](source);
//       }
//   }
  
  
//   function isSourcesEqual(source1, source2) {
//       return source1 && source2 && getSourcePrimitive(source1) == getSourcePrimitive(source2);
//   }
  
  
//   function getSourcePrimitive(source) {
//       return ((typeof source == 'object') ? (source.events || source.url) : '') || source;
//   }


// }

// ;;


// fc.addDays = addDays;
// fc.cloneDate = cloneDate;
// fc.parseDate = parseDate;
// fc.parseISO8601 = parseISO8601;
// fc.parseTime = parseTime;
// fc.formatDate = formatDate;
// fc.formatDates = formatDates;



// /* Date Math
// -----------------------------------------------------------------------------*/

// var dayIDs = ['sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat'],
//   DAY_MS = 86400000,
//   HOUR_MS = 3600000,
//   MINUTE_MS = 60000;
  

// function addYears(d, n, keepTime) {
//   d.setFullYear(d.getFullYear() + n);
//   if (!keepTime) {
//       clearTime(d);
//   }
//   return d;
// }


// function addMonths(d, n, keepTime) { // prevents day overflow/underflow
//   if (+d) { // prevent infinite looping on invalid dates
//       var m = d.getMonth() + n,
//           check = cloneDate(d);
//       check.setDate(1);
//       check.setMonth(m);
//       d.setMonth(m);
//       if (!keepTime) {
//           clearTime(d);
//       }
//       while (d.getMonth() != check.getMonth()) {
//           d.setDate(d.getDate() + (d < check ? 1 : -1));
//       }
//   }
//   return d;
// }


// function addDays(d, n, keepTime) { // deals with daylight savings
//   if (+d) {
//       var dd = d.getDate() + n,
//           check = cloneDate(d);
//       check.setHours(9); // set to middle of day
//       check.setDate(dd);
//       d.setDate(dd);
//       if (!keepTime) {
//           clearTime(d);
//       }
//       fixDate(d, check);
//   }
//   return d;
// }


// function fixDate(d, check) { // force d to be on check's YMD, for daylight savings purposes
//   if (+d) { // prevent infinite looping on invalid dates
//       while (d.getDate() != check.getDate()) {
//           d.setTime(+d + (d < check ? 1 : -1) * HOUR_MS);
//       }
//   }
// }


// function addMinutes(d, n) {
//   d.setMinutes(d.getMinutes() + n);
//   return d;
// }


// function clearTime(d) {
//   d.setHours(0);
//   d.setMinutes(0);
//   d.setSeconds(0); 
//   d.setMilliseconds(0);
//   return d;
// }


// function cloneDate(d, dontKeepTime) {
//   if (dontKeepTime) {
//       return clearTime(new Date(+d));
//   }
//   return new Date(+d);
// }


// function zeroDate() { // returns a Date with time 00:00:00 and dateOfMonth=1
//   var i=0, d;
//   do {
//       d = new Date(1970, i++, 1);
//   } while (d.getHours()); // != 0
//   return d;
// }


// function dayDiff(d1, d2) { // d1 - d2
//   return Math.round((cloneDate(d1, true) - cloneDate(d2, true)) / DAY_MS);
// }


// function setYMD(date, y, m, d) {
//   if (y !== undefined && y != date.getFullYear()) {
//       date.setDate(1);
//       date.setMonth(0);
//       date.setFullYear(y);
//   }
//   if (m !== undefined && m != date.getMonth()) {
//       date.setDate(1);
//       date.setMonth(m);
//   }
//   if (d !== undefined) {
//       date.setDate(d);
//   }
// }



// /* Date Parsing
// -----------------------------------------------------------------------------*/


// function parseDate(s, ignoreTimezone) { // ignoreTimezone defaults to true
//   if (typeof s == 'object') { // already a Date object
//       return s;
//   }
//   if (typeof s == 'number') { // a UNIX timestamp
//       return new Date(s * 1000);
//   }
//   if (typeof s == 'string') {
//       if (s.match(/^\d+(\.\d+)?$/)) { // a UNIX timestamp
//           return new Date(parseFloat(s) * 1000);
//       }
//       if (ignoreTimezone === undefined) {
//           ignoreTimezone = true;
//       }
//       return parseISO8601(s, ignoreTimezone) || (s ? new Date(s) : null);
//   }
//   // TODO: never return invalid dates (like from new Date(<string>)), return null instead
//   return null;
// }


// function parseISO8601(s, ignoreTimezone) { // ignoreTimezone defaults to false
//   // derived from http://delete.me.uk/2005/03/iso8601.html
//   // TODO: for a know glitch/feature, read tests/issue_206_parseDate_dst.html
//   var m = s.match(/^([0-9]{4})(-([0-9]{2})(-([0-9]{2})([T ]([0-9]{2}):([0-9]{2})(:([0-9]{2})(\.([0-9]+))?)?(Z|(([-+])([0-9]{2})(:?([0-9]{2}))?))?)?)?)?$/);
//   if (!m) {
//       return null;
//   }
//   var date = new Date(m[1], 0, 1);
//   if (ignoreTimezone || !m[13]) {
//       var check = new Date(m[1], 0, 1, 9, 0);
//       if (m[3]) {
//           date.setMonth(m[3] - 1);
//           check.setMonth(m[3] - 1);
//       }
//       if (m[5]) {
//           date.setDate(m[5]);
//           check.setDate(m[5]);
//       }
//       fixDate(date, check);
//       if (m[7]) {
//           date.setHours(m[7]);
//       }
//       if (m[8]) {
//           date.setMinutes(m[8]);
//       }
//       if (m[10]) {
//           date.setSeconds(m[10]);
//       }
//       if (m[12]) {
//           date.setMilliseconds(Number("0." + m[12]) * 1000);
//       }
//       fixDate(date, check);
//   }else{
//       date.setUTCFullYear(
//           m[1],
//           m[3] ? m[3] - 1 : 0,
//           m[5] || 1
//       );
//       date.setUTCHours(
//           m[7] || 0,
//           m[8] || 0,
//           m[10] || 0,
//           m[12] ? Number("0." + m[12]) * 1000 : 0
//       );
//       if (m[14]) {
//           var offset = Number(m[16]) * 60 + (m[18] ? Number(m[18]) : 0);
//           offset *= m[15] == '-' ? 1 : -1;
//           date = new Date(+date + (offset * 60 * 1000));
//       }
//   }
//   return date;
// }


// function parseTime(s) { // returns minutes since start of day
//   if (typeof s == 'number') { // an hour
//       return s * 60;
//   }
//   if (typeof s == 'object') { // a Date object
//       return s.getHours() * 60 + s.getMinutes();
//   }
//   var m = s.match(/(\d+)(?::(\d+))?\s*(\w+)?/);
//   if (m) {
//       var h = parseInt(m[1], 10);
//       if (m[3]) {
//           h %= 12;
//           if (m[3].toLowerCase().charAt(0) == 'p') {
//               h += 12;
//           }
//       }
//       return h * 60 + (m[2] ? parseInt(m[2], 10) : 0);
//   }
// }



// /* Date Formatting
// -----------------------------------------------------------------------------*/
// // TODO: use same function formatDate(date, [date2], format, [options])


// function formatDate(date, format, options) {
//   return formatDates(date, null, format, options);
// }


// function formatDates(date1, date2, format, options) {
//   options = options || defaults;
//   var date = date1,
//       otherDate = date2,
//       i, len = format.length, c,
//       i2, formatter,
//       res = '';
//   for (i=0; i<len; i++) {
//       c = format.charAt(i);
//       if (c == "'") {
//           for (i2=i+1; i2<len; i2++) {
//               if (format.charAt(i2) == "'") {
//                   if (date) {
//                       if (i2 == i+1) {
//                           res += "'";
//                       }else{
//                           res += format.substring(i+1, i2);
//                       }
//                       i = i2;
//                   }
//                   break;
//               }
//           }
//       }
//       else if (c == '(') {
//           for (i2=i+1; i2<len; i2++) {
//               if (format.charAt(i2) == ')') {
//                   var subres = formatDate(date, format.substring(i+1, i2), options);
//                   if (parseInt(subres.replace(/\D/, ''), 10)) {
//                       res += subres;
//                   }
//                   i = i2;
//                   break;
//               }
//           }
//       }
//       else if (c == '[') {
//           for (i2=i+1; i2<len; i2++) {
//               if (format.charAt(i2) == ']') {
//                   var subformat = format.substring(i+1, i2);
//                   var subres = formatDate(date, subformat, options);
//                   if (subres != formatDate(otherDate, subformat, options)) {
//                       res += subres;
//                   }
//                   i = i2;
//                   break;
//               }
//           }
//       }
//       else if (c == '{') {
//           date = date2;
//           otherDate = date1;
//       }
//       else if (c == '}') {
//           date = date1;
//           otherDate = date2;
//       }
//       else {
//           for (i2=len; i2>i; i2--) {
//               if (formatter = dateFormatters[format.substring(i, i2)]) {
//                   if (date) {
//                       res += formatter(date, options);
//                   }
//                   i = i2 - 1;
//                   break;
//               }
//           }
//           if (i2 == i) {
//               if (date) {
//                   res += c;
//               }
//           }
//       }
//   }
//   return res;
// };


// var dateFormatters = {
//   s	: function(d)	{ return d.getSeconds() },
//   ss	: function(d)	{ return zeroPad(d.getSeconds()) },
//   m	: function(d)	{ return d.getMinutes() },
//   mm	: function(d)	{ return zeroPad(d.getMinutes()) },
//   h	: function(d)	{ return d.getHours() % 12 || 12 },
//   hh	: function(d)	{ return zeroPad(d.getHours() % 12 || 12) },
//   H	: function(d)	{ return d.getHours() },
//   HH	: function(d)	{ return zeroPad(d.getHours()) },
//   d	: function(d)	{ return d.getDate() },
//   dd	: function(d)	{ return zeroPad(d.getDate()) },
//   ddd	: function(d,o)	{ return o.dayNamesShort[d.getDay()] },
//   dddd: function(d,o)	{ return o.dayNames[d.getDay()] },
//   M	: function(d)	{ return d.getMonth() + 1 },
//   MM	: function(d)	{ return zeroPad(d.getMonth() + 1) },
//   MMM	: function(d,o)	{ return o.monthNamesShort[d.getMonth()] },
//   MMMM: function(d,o)	{ return o.monthNames[d.getMonth()] },
//   yy	: function(d)	{ return (d.getFullYear()+'').substring(2) },
//   yyyy: function(d)	{ return d.getFullYear() },
//   t	: function(d)	{ return d.getHours() < 12 ? 'a' : 'p' },
//   tt	: function(d)	{ return d.getHours() < 12 ? 'am' : 'pm' },
//   T	: function(d)	{ return d.getHours() < 12 ? 'A' : 'P' },
//   TT	: function(d)	{ return d.getHours() < 12 ? 'AM' : 'PM' },
//   u	: function(d)	{ return formatDate(d, "yyyy-MM-dd'T'HH:mm:ss'Z'") },
//   S	: function(d)	{
//       var date = d.getDate();
//       if (date > 10 && date < 20) {
//           return 'th';
//       }
//       return ['st', 'nd', 'rd'][date%10-1] || 'th';
//   },
//   w   : function(d, o) { // local
//       return o.weekNumberCalculation(d);
//   },
//   W   : function(d) { // ISO
//       return iso8601Week(d);
//   }
// };
// fc.dateFormatters = dateFormatters;


// /* thanks jQuery UI (https://github.com/jquery/jquery-ui/blob/master/ui/jquery.ui.datepicker.js)
// * 
// * Set as calculateWeek to determine the week of the year based on the ISO 8601 definition.
// * `date` - the date to get the week for
// * `number` - the number of the week within the year that contains this date
// */
// function iso8601Week(date) {
//   var time;
//   var checkDate = new Date(date.getTime());

//   // Find Thursday of this week starting on Monday
//   checkDate.setDate(checkDate.getDate() + 4 - (checkDate.getDay() || 7));

//   time = checkDate.getTime();
//   checkDate.setMonth(0); // Compare with Jan 1
//   checkDate.setDate(1);
//   return Math.floor(Math.round((time - checkDate) / 86400000) / 7) + 1;
// }


// ;;

// fc.applyAll = applyAll;


// /* Event Date Math
// -----------------------------------------------------------------------------*/


// function exclEndDay(event) {
//   if (event.end) {
//       return _exclEndDay(event.end, event.allDay);
//   }else{
//       return addDays(cloneDate(event.start), 1);
//   }
// }


// function _exclEndDay(end, allDay) {
//   end = cloneDate(end);
//   return allDay || end.getHours() || end.getMinutes() ? addDays(end, 1) : clearTime(end);
//   // why don't we check for seconds/ms too?
// }



// /* Event Element Binding
// -----------------------------------------------------------------------------*/


// function lazySegBind(container, segs, bindHandlers) {
//   container.unbind('mouseover').mouseover(function(ev) {
//       var parent=ev.target, e,
//           i, seg;
//       while (parent != this) {
//           e = parent;
//           parent = parent.parentNode;
//       }
//       if ((i = e._fci) !== undefined) {
//           e._fci = undefined;
//           seg = segs[i];
//           bindHandlers(seg.event, seg.element, seg);
//           $(ev.target).trigger(ev);
//       }
//       ev.stopPropagation();
//   });
// }



// /* Element Dimensions
// -----------------------------------------------------------------------------*/


// function setOuterWidth(element, width, includeMargins) {
//   for (var i=0, e; i<element.length; i++) {
//       e = $(element[i]);
//       e.width(Math.max(0, width - hsides(e, includeMargins)));
//   }
// }


// function setOuterHeight(element, height, includeMargins) {
//   for (var i=0, e; i<element.length; i++) {
//       e = $(element[i]);
//       e.height(Math.max(0, height - vsides(e, includeMargins)));
//   }
// }


// function hsides(element, includeMargins) {
//   return hpadding(element) + hborders(element) + (includeMargins ? hmargins(element) : 0);
// }


// function hpadding(element) {
//   return (parseFloat($.css(element[0], 'paddingLeft', true)) || 0) +
//          (parseFloat($.css(element[0], 'paddingRight', true)) || 0);
// }


// function hmargins(element) {
//   return (parseFloat($.css(element[0], 'marginLeft', true)) || 0) +
//          (parseFloat($.css(element[0], 'marginRight', true)) || 0);
// }


// function hborders(element) {
//   return (parseFloat($.css(element[0], 'borderLeftWidth', true)) || 0) +
//          (parseFloat($.css(element[0], 'borderRightWidth', true)) || 0);
// }


// function vsides(element, includeMargins) {
//   return vpadding(element) +  vborders(element) + (includeMargins ? vmargins(element) : 0);
// }


// function vpadding(element) {
//   return (parseFloat($.css(element[0], 'paddingTop', true)) || 0) +
//          (parseFloat($.css(element[0], 'paddingBottom', true)) || 0);
// }


// function vmargins(element) {
//   return (parseFloat($.css(element[0], 'marginTop', true)) || 0) +
//          (parseFloat($.css(element[0], 'marginBottom', true)) || 0);
// }


// function vborders(element) {
//   return (parseFloat($.css(element[0], 'borderTopWidth', true)) || 0) +
//          (parseFloat($.css(element[0], 'borderBottomWidth', true)) || 0);
// }



// /* Misc Utils
// -----------------------------------------------------------------------------*/


// //TODO: arraySlice
// //TODO: isFunction, grep ?


// function noop() { }


// function dateCompare(a, b) {
//   return a - b;
// }


// function arrayMax(a) {
//   return Math.max.apply(Math, a);
// }


// function zeroPad(n) {
//   return (n < 10 ? '0' : '') + n;
// }


// function smartProperty(obj, name) { // get a camel-cased/namespaced property of an object
//   if (obj[name] !== undefined) {
//       return obj[name];
//   }
//   var parts = name.split(/(?=[A-Z])/),
//       i=parts.length-1, res;
//   for (; i>=0; i--) {
//       res = obj[parts[i].toLowerCase()];
//       if (res !== undefined) {
//           return res;
//       }
//   }
//   return obj[''];
// }


// function htmlEscape(s) {
//   return s.replace(/&/g, '&amp;')
//       .replace(/</g, '&lt;')
//       .replace(/>/g, '&gt;')
//       .replace(/'/g, '&#039;')
//       .replace(/"/g, '&quot;')
//       .replace(/\n/g, '<br />');
// }


// function disableTextSelection(element) {
//   element
//       .attr('unselectable', 'on')
//       .css('MozUserSelect', 'none')
//       .bind('selectstart.ui', function() { return false; });
// }


// /*
// function enableTextSelection(element) {
//   element
//       .attr('unselectable', 'off')
//       .css('MozUserSelect', '')
//       .unbind('selectstart.ui');
// }
// */


// function markFirstLast(e) {
//   e.children()
//       .removeClass('fc-first fc-last')
//       .filter(':first-child')
//           .addClass('fc-first')
//       .end()
//       .filter(':last-child')
//           .addClass('fc-last');
// }


// function setDayID(cell, date) {
//   cell.each(function(i, _cell) {
//       _cell.className = _cell.className.replace(/^fc-\w*/, 'fc-' + dayIDs[date.getDay()]);
//       // TODO: make a way that doesn't rely on order of classes
//   });
// }


// function getSkinCss(event, opt) {
//   var source = event.source || {};
//   var eventColor = event.color;
//   var sourceColor = source.color;
//   var optionColor = opt('eventColor');
//   var backgroundColor =
//       event.backgroundColor ||
//       eventColor ||
//       source.backgroundColor ||
//       sourceColor ||
//       opt('eventBackgroundColor') ||
//       optionColor;
//   var borderColor =
//       event.borderColor ||
//       eventColor ||
//       source.borderColor ||
//       sourceColor ||
//       opt('eventBorderColor') ||
//       optionColor;
//   var textColor =
//       event.textColor ||
//       source.textColor ||
//       opt('eventTextColor');
//   var statements = [];
//   if (backgroundColor) {
//       statements.push('background-color:' + backgroundColor);
//   }
//   if (borderColor) {
//       statements.push('border-color:' + borderColor);
//   }
//   if (textColor) {
//       statements.push('color:' + textColor);
//   }
//   return statements.join(';');
// }


// function applyAll(functions, thisObj, args) {
//   if ($.isFunction(functions)) {
//       functions = [ functions ];
//   }
//   if (functions) {
//       var i;
//       var ret;
//       for (i=0; i<functions.length; i++) {
//           ret = functions[i].apply(thisObj, args) || ret;
//       }
//       return ret;
//   }
// }


// function firstDefined() {
//   for (var i=0; i<arguments.length; i++) {
//       if (arguments[i] !== undefined) {
//           return arguments[i];
//       }
//   }
// }


// ;;

// fcViews.month = MonthView;

// function MonthView(element, calendar) {
//   var t = this;
  
  
//   // exports
//   t.render = render;
  
  
//   // imports
//   BasicView.call(t, element, calendar, 'month');
//   var opt = t.opt;
//   var renderBasic = t.renderBasic;
//   var skipHiddenDays = t.skipHiddenDays;
//   var getCellsPerWeek = t.getCellsPerWeek;
//   var formatDate = calendar.formatDate;
  
  
//   function render(date, delta) {

//       if (delta) {
//           addMonths(date, delta);
//           date.setDate(1);
//       }

//       var firstDay = opt('firstDay');

//       var start = cloneDate(date, true);
//       start.setDate(1);

//       var end = addMonths(cloneDate(start), 1);

//       var visStart = cloneDate(start);
//       addDays(visStart, -((visStart.getDay() - firstDay + 7) % 7));
//       skipHiddenDays(visStart);

//       var visEnd = cloneDate(end);
//       addDays(visEnd, (7 - visEnd.getDay() + firstDay) % 7);
//       skipHiddenDays(visEnd, -1, true);

//       var colCnt = getCellsPerWeek();
//       var rowCnt = Math.round(dayDiff(visEnd, visStart) / 7); // should be no need for Math.round

//       if (opt('weekMode') == 'fixed') {
//           addDays(visEnd, (6 - rowCnt) * 7); // add weeks to make up for it
//           rowCnt = 6;
//       }

//       t.title = formatDate(start, opt('titleFormat'));

//       t.start = start;
//       t.end = end;
//       t.visStart = visStart;
//       t.visEnd = visEnd;

//       renderBasic(rowCnt, colCnt, true);
//   }
  
  
// }

// ;;

// fcViews.basicWeek = BasicWeekView;

// function BasicWeekView(element, calendar) {
//   var t = this;
  
  
//   // exports
//   t.render = render;
  
  
//   // imports
//   BasicView.call(t, element, calendar, 'basicWeek');
//   var opt = t.opt;
//   var renderBasic = t.renderBasic;
//   var skipHiddenDays = t.skipHiddenDays;
//   var getCellsPerWeek = t.getCellsPerWeek;
//   var formatDates = calendar.formatDates;
  
  
//   function render(date, delta) {

//       if (delta) {
//           addDays(date, delta * 7);
//       }

//       var start = addDays(cloneDate(date), -((date.getDay() - opt('firstDay') + 7) % 7));
//       var end = addDays(cloneDate(start), 7);

//       var visStart = cloneDate(start);
//       skipHiddenDays(visStart);

//       var visEnd = cloneDate(end);
//       skipHiddenDays(visEnd, -1, true);

//       var colCnt = getCellsPerWeek();

//       t.start = start;
//       t.end = end;
//       t.visStart = visStart;
//       t.visEnd = visEnd;

//       t.title = formatDates(
//           visStart,
//           addDays(cloneDate(visEnd), -1),
//           opt('titleFormat')
//       );

//       renderBasic(1, colCnt, false);
//   }
  
  
// }

// ;;

// fcViews.basicDay = BasicDayView;


// function BasicDayView(element, calendar) {
//   var t = this;
  
  
//   // exports
//   t.render = render;
  
  
//   // imports
//   BasicView.call(t, element, calendar, 'basicDay');
//   var opt = t.opt;
//   var renderBasic = t.renderBasic;
//   var skipHiddenDays = t.skipHiddenDays;
//   var formatDate = calendar.formatDate;
  
  
//   function render(date, delta) {

//       if (delta) {
//           addDays(date, delta);
//       }
//       skipHiddenDays(date, delta < 0 ? -1 : 1);

//       var start = cloneDate(date, true);
//       var end = addDays(cloneDate(start), 1);

//       t.title = formatDate(date, opt('titleFormat'));

//       t.start = t.visStart = start;
//       t.end = t.visEnd = end;

//       renderBasic(1, 1, false);
//   }
  
  
// }

// ;;

// setDefaults({
//   weekMode: 'fixed'
// });


// function BasicView(element, calendar, viewName) {
//   var t = this;
  
  
//   // exports
//   t.renderBasic = renderBasic;
//   t.setHeight = setHeight;
//   t.setWidth = setWidth;
//   t.renderDayOverlay = renderDayOverlay;
//   t.defaultSelectionEnd = defaultSelectionEnd;
//   t.renderSelection = renderSelection;
//   t.clearSelection = clearSelection;
//   t.reportDayClick = reportDayClick; // for selection (kinda hacky)
//   t.dragStart = dragStart;
//   t.dragStop = dragStop;
//   t.defaultEventEnd = defaultEventEnd;
//   t.getHoverListener = function() { return hoverListener };
//   t.colLeft = colLeft;
//   t.colRight = colRight;
//   t.colContentLeft = colContentLeft;
//   t.colContentRight = colContentRight;
//   t.getIsCellAllDay = function() { return true };
//   t.allDayRow = allDayRow;
//   t.getRowCnt = function() { return rowCnt };
//   t.getColCnt = function() { return colCnt };
//   t.getColWidth = function() { return colWidth };
//   t.getDaySegmentContainer = function() { return daySegmentContainer };
  
  
//   // imports
//   View.call(t, element, calendar, viewName);
//   OverlayManager.call(t);
//   SelectionManager.call(t);
//   BasicEventRenderer.call(t);
//   var opt = t.opt;
//   var trigger = t.trigger;
//   var renderOverlay = t.renderOverlay;
//   var clearOverlays = t.clearOverlays;
//   var daySelectionMousedown = t.daySelectionMousedown;
//   var cellToDate = t.cellToDate;
//   var dateToCell = t.dateToCell;
//   var rangeToSegments = t.rangeToSegments;
//   var formatDate = calendar.formatDate;
  
  
//   // locals
  
//   var table;
//   var head;
//   var headCells;
//   var body;
//   var bodyRows;
//   var bodyCells;
//   var bodyFirstCells;
//   var firstRowCellInners;
//   var firstRowCellContentInners;
//   var daySegmentContainer;
  
//   var viewWidth;
//   var viewHeight;
//   var colWidth;
//   var weekNumberWidth;
  
//   var rowCnt, colCnt;
//   var showNumbers;
//   var coordinateGrid;
//   var hoverListener;
//   var colPositions;
//   var colContentPositions;
  
//   var tm;
//   var colFormat;
//   var showWeekNumbers;
//   var weekNumberTitle;
//   var weekNumberFormat;
  
  
  
//   /* Rendering
//   ------------------------------------------------------------*/
  
  
//   disableTextSelection(element.addClass('fc-grid'));
  
  
//   function renderBasic(_rowCnt, _colCnt, _showNumbers) {
//       rowCnt = _rowCnt;
//       colCnt = _colCnt;
//       showNumbers = _showNumbers;
//       updateOptions();

//       if (!body) {
//           buildEventContainer();
//       }

//       buildTable();
//   }
  
  
//   function updateOptions() {
//       tm = opt('theme') ? 'ui' : 'fc';
//       colFormat = opt('columnFormat');

//       // week # options. (TODO: bad, logic also in other views)
//       showWeekNumbers = opt('weekNumbers');
//       weekNumberTitle = opt('weekNumberTitle');
//       if (opt('weekNumberCalculation') != 'iso') {
//           weekNumberFormat = "w";
//       }
//       else {
//           weekNumberFormat = "W";
//       }
//   }
  
  
//   function buildEventContainer() {
//       daySegmentContainer =
//           $("<div class='fc-event-container' style='position:absolute;z-index:8;top:0;left:0'/>")
//               .appendTo(element);
//   }
  
  
//   function buildTable() {
//       var html = buildTableHTML();

//       if (table) {
//           table.remove();
//       }
//       table = $(html).appendTo(element);

//       head = table.find('thead');
//       headCells = head.find('.fc-day-header');
//       body = table.find('tbody');
//       bodyRows = body.find('tr');
//       bodyCells = body.find('.fc-day');
//       bodyFirstCells = bodyRows.find('td:first-child');

//       firstRowCellInners = bodyRows.eq(0).find('.fc-day > div');
//       firstRowCellContentInners = bodyRows.eq(0).find('.fc-day-content > div');
      
//       markFirstLast(head.add(head.find('tr'))); // marks first+last tr/th's
//       markFirstLast(bodyRows); // marks first+last td's
//       bodyRows.eq(0).addClass('fc-first');
//       bodyRows.filter(':last').addClass('fc-last');

//       bodyCells.each(function(i, _cell) {
//           var date = cellToDate(
//               Math.floor(i / colCnt),
//               i % colCnt
//           );
//           trigger('dayRender', t, date, $(_cell));
//       });

//       dayBind(bodyCells);
//   }



//   /* HTML Building
//   -----------------------------------------------------------*/


//   function buildTableHTML() {
//       var html =
//           "<table class='fc-border-separate' style='width:100%' cellspacing='0'>" +
//           buildHeadHTML() +
//           buildBodyHTML() +
//           "</table>";

//       return html;
//   }


//   function buildHeadHTML() {
//       var headerClass = tm + "-widget-header";
//       var html = '';
//       var col;
//       var date;

//       html += "<thead><tr>";

//       if (showWeekNumbers) {
//           html +=
//               "<th class='fc-week-number " + headerClass + "'>" +
//               htmlEscape(weekNumberTitle) +
//               "</th>";
//       }

//       for (col=0; col<colCnt; col++) {
//           date = cellToDate(0, col);
//           html +=
//               "<th class='fc-day-header fc-" + dayIDs[date.getDay()] + " " + headerClass + "'>" +
//               htmlEscape(formatDate(date, colFormat)) +
//               "</th>";
//       }

//       html += "</tr></thead>";

//       return html;
//   }


//   function buildBodyHTML() {
//       var contentClass = tm + "-widget-content";
//       var html = '';
//       var row;
//       var col;
//       var date;

//       html += "<tbody>";

//       for (row=0; row<rowCnt; row++) {

//           html += "<tr class='fc-week'>";

//           if (showWeekNumbers) {
//               date = cellToDate(row, 0);
//               html +=
//                   "<td class='fc-week-number " + contentClass + "'>" +
//                   "<div>" +
//                   htmlEscape(formatDate(date, weekNumberFormat)) +
//                   "</div>" +
//                   "</td>";
//           }

//           for (col=0; col<colCnt; col++) {
//               date = cellToDate(row, col);
//               html += buildCellHTML(date);
//           }

//           html += "</tr>";
//       }

//       html += "</tbody>";

//       return html;
//   }


//   function buildCellHTML(date) {
//       var contentClass = tm + "-widget-content";
//       var month = t.start.getMonth();
//       var today = clearTime(new Date());
//       var html = '';
//       var classNames = [
//           'fc-day',
//           'fc-' + dayIDs[date.getDay()],
//           contentClass
//       ];

//       if (date.getMonth() != month) {
//           classNames.push('fc-other-month');
//       }
//       if (+date == +today) {
//           classNames.push(
//               'fc-today',
//               tm + '-state-highlight'
//           );
//       }
//       else if (date < today) {
//           classNames.push('fc-past');
//       }
//       else {
//           classNames.push('fc-future');
//       }

//       html +=
//           "<td" +
//           " class='" + classNames.join(' ') + "'" +
//           " data-date='" + formatDate(date, 'yyyy-MM-dd') + "'" +
//           ">" +
//           "<div>";

//       if (showNumbers) {
//           html += "<div class='fc-day-number'>" + date.getDate() + "</div>";
//       }

//       html +=
//           "<div class='fc-day-content'>" +
//           "<div style='position:relative'>&nbsp;</div>" +
//           "</div>" +
//           "</div>" +
//           "</td>";

//       return html;
//   }



//   /* Dimensions
//   -----------------------------------------------------------*/
  
  
//   function setHeight(height) {
//       viewHeight = height;
      
//       var bodyHeight = viewHeight - head.height();
//       var rowHeight;
//       var rowHeightLast;
//       var cell;
          
//       if (opt('weekMode') == 'variable') {
//           rowHeight = rowHeightLast = Math.floor(bodyHeight / (rowCnt==1 ? 2 : 6));
//       }else{
//           rowHeight = Math.floor(bodyHeight / rowCnt);
//           rowHeightLast = bodyHeight - rowHeight * (rowCnt-1);
//       }
      
//       bodyFirstCells.each(function(i, _cell) {
//           if (i < rowCnt) {
//               cell = $(_cell);
//               cell.find('> div').css(
//                   'min-height',
//                   (i==rowCnt-1 ? rowHeightLast : rowHeight) - vsides(cell)
//               );
//           }
//       });
      
//   }
  
  
//   function setWidth(width) {
//       viewWidth = width;
//       colPositions.clear();
//       colContentPositions.clear();

//       weekNumberWidth = 0;
//       if (showWeekNumbers) {
//           weekNumberWidth = head.find('th.fc-week-number').outerWidth();
//       }

//       colWidth = Math.floor((viewWidth - weekNumberWidth) / colCnt);
//       setOuterWidth(headCells.slice(0, -1), colWidth);
//   }
  
  
  
//   /* Day clicking and binding
//   -----------------------------------------------------------*/
  
  
//   function dayBind(days) {
//       days.click(dayClick)
//           .mousedown(daySelectionMousedown);
//   }
  
  
//   function dayClick(ev) {
//       if (!opt('selectable')) { // if selectable, SelectionManager will worry about dayClick
//           var date = parseISO8601($(this).data('date'));
//           trigger('dayClick', this, date, true, ev);
//       }
//   }
  
  
  
//   /* Semi-transparent Overlay Helpers
//   ------------------------------------------------------*/
//   // TODO: should be consolidated with AgendaView's methods


//   function renderDayOverlay(overlayStart, overlayEnd, refreshCoordinateGrid) { // overlayEnd is exclusive

//       if (refreshCoordinateGrid) {
//           coordinateGrid.build();
//       }

//       var segments = rangeToSegments(overlayStart, overlayEnd);

//       for (var i=0; i<segments.length; i++) {
//           var segment = segments[i];
//           dayBind(
//               renderCellOverlay(
//                   segment.row,
//                   segment.leftCol,
//                   segment.row,
//                   segment.rightCol
//               )
//           );
//       }
//   }

  
//   function renderCellOverlay(row0, col0, row1, col1) { // row1,col1 is inclusive
//       var rect = coordinateGrid.rect(row0, col0, row1, col1, element);
//       return renderOverlay(rect, element);
//   }
  
  
  
//   /* Selection
//   -----------------------------------------------------------------------*/
  
  
//   function defaultSelectionEnd(startDate, allDay) {
//       return cloneDate(startDate);
//   }
  
  
//   function renderSelection(startDate, endDate, allDay) {
//       renderDayOverlay(startDate, addDays(cloneDate(endDate), 1), true); // rebuild every time???
//   }
  
  
//   function clearSelection() {
//       clearOverlays();
//   }
  
  
//   function reportDayClick(date, allDay, ev) {
//       var cell = dateToCell(date);
//       var _element = bodyCells[cell.row*colCnt + cell.col];
//       trigger('dayClick', _element, date, allDay, ev);
//   }
  
  
  
//   /* External Dragging
//   -----------------------------------------------------------------------*/
  
  
//   function dragStart(_dragElement, ev, ui) {
//       hoverListener.start(function(cell) {
//           clearOverlays();
//           if (cell) {
//               renderCellOverlay(cell.row, cell.col, cell.row, cell.col);
//           }
//       }, ev);
//   }
  
  
//   function dragStop(_dragElement, ev, ui) {
//       var cell = hoverListener.stop();
//       clearOverlays();
//       if (cell) {
//           var d = cellToDate(cell);
//           trigger('drop', _dragElement, d, true, ev, ui);
//       }
//   }
  
  
  
//   /* Utilities
//   --------------------------------------------------------*/
  
  
//   function defaultEventEnd(event) {
//       return cloneDate(event.start);
//   }
  
  
//   coordinateGrid = new CoordinateGrid(function(rows, cols) {
//       var e, n, p;
//       headCells.each(function(i, _e) {
//           e = $(_e);
//           n = e.offset().left;
//           if (i) {
//               p[1] = n;
//           }
//           p = [n];
//           cols[i] = p;
//       });
//       p[1] = n + e.outerWidth();
//       bodyRows.each(function(i, _e) {
//           if (i < rowCnt) {
//               e = $(_e);
//               n = e.offset().top;
//               if (i) {
//                   p[1] = n;
//               }
//               p = [n];
//               rows[i] = p;
//           }
//       });
//       p[1] = n + e.outerHeight();
//   });
  
  
//   hoverListener = new HoverListener(coordinateGrid);
  
//   colPositions = new HorizontalPositionCache(function(col) {
//       return firstRowCellInners.eq(col);
//   });

//   colContentPositions = new HorizontalPositionCache(function(col) {
//       return firstRowCellContentInners.eq(col);
//   });


//   function colLeft(col) {
//       return colPositions.left(col);
//   }


//   function colRight(col) {
//       return colPositions.right(col);
//   }
  
  
//   function colContentLeft(col) {
//       return colContentPositions.left(col);
//   }
  
  
//   function colContentRight(col) {
//       return colContentPositions.right(col);
//   }
  
  
//   function allDayRow(i) {
//       return bodyRows.eq(i);
//   }
  
// }

// ;;

// function BasicEventRenderer() {
//   var t = this;
  
  
//   // exports
//   t.renderEvents = renderEvents;
//   t.clearEvents = clearEvents;
  

//   // imports
//   DayEventRenderer.call(t);

  
//   function renderEvents(events, modifiedEventId) {
//       t.renderDayEvents(events, modifiedEventId);
//   }
  
  
//   function clearEvents() {
//       t.getDaySegmentContainer().empty();
//   }


//   // TODO: have this class (and AgendaEventRenderer) be responsible for creating the event container div

// }

// ;;

// fcViews.agendaWeek = AgendaWeekView;

// function AgendaWeekView(element, calendar) {
//   var t = this;
  
  
//   // exports
//   t.render = render;
  
  
//   // imports
//   AgendaView.call(t, element, calendar, 'agendaWeek');
//   var opt = t.opt;
//   var renderAgenda = t.renderAgenda;
//   var skipHiddenDays = t.skipHiddenDays;
//   var getCellsPerWeek = t.getCellsPerWeek;
//   var formatDates = calendar.formatDates;

  
//   function render(date, delta) {

//       if (delta) {
//           addDays(date, delta * 7);
//       }

//       var start = addDays(cloneDate(date), -((date.getDay() - opt('firstDay') + 7) % 7));
//       var end = addDays(cloneDate(start), 7);

//       var visStart = cloneDate(start);
//       skipHiddenDays(visStart);

//       var visEnd = cloneDate(end);
//       skipHiddenDays(visEnd, -1, true);

//       var colCnt = getCellsPerWeek();

//       t.title = formatDates(
//           visStart,
//           addDays(cloneDate(visEnd), -1),
//           opt('titleFormat')
//       );

//       t.start = start;
//       t.end = end;
//       t.visStart = visStart;
//       t.visEnd = visEnd;

//       renderAgenda(colCnt);
//   }

// }

// ;;

// fcViews.agendaDay = AgendaDayView;


// function AgendaDayView(element, calendar) {
//   var t = this;
  
  
//   // exports
//   t.render = render;
  
  
//   // imports
//   AgendaView.call(t, element, calendar, 'agendaDay');
//   var opt = t.opt;
//   var renderAgenda = t.renderAgenda;
//   var skipHiddenDays = t.skipHiddenDays;
//   var formatDate = calendar.formatDate;
  
  
//   function render(date, delta) {

//       if (delta) {
//           addDays(date, delta);
//       }
//       skipHiddenDays(date, delta < 0 ? -1 : 1);

//       var start = cloneDate(date, true);
//       var end = addDays(cloneDate(start), 1);

//       t.title = formatDate(date, opt('titleFormat'));

//       t.start = t.visStart = start;
//       t.end = t.visEnd = end;

//       renderAgenda(1);
//   }
  

// }

// ;;

// setDefaults({
//   allDaySlot: true,
//   allDayText: 'all-day',
//   firstHour: 6,
//   slotMinutes: 30,
//   defaultEventMinutes: 120,
//   axisFormat: 'h(:mm)tt',
//   timeFormat: {
//       agenda: 'h:mm{ - h:mm}'
//   },
//   dragOpacity: {
//       agenda: .5
//   },
//   minTime: 0,
//   maxTime: 24,
//   slotEventOverlap: true
// });


// // TODO: make it work in quirks mode (event corners, all-day height)
// // TODO: test liquid width, especially in IE6


// function AgendaView(element, calendar, viewName) {
//   var t = this;
  
  
//   // exports
//   t.renderAgenda = renderAgenda;
//   t.setWidth = setWidth;
//   t.setHeight = setHeight;
//   t.afterRender = afterRender;
//   t.defaultEventEnd = defaultEventEnd;
//   t.timePosition = timePosition;
//   t.getIsCellAllDay = getIsCellAllDay;
//   t.allDayRow = getAllDayRow;
//   t.getCoordinateGrid = function() { return coordinateGrid }; // specifically for AgendaEventRenderer
//   t.getHoverListener = function() { return hoverListener };
//   t.colLeft = colLeft;
//   t.colRight = colRight;
//   t.colContentLeft = colContentLeft;
//   t.colContentRight = colContentRight;
//   t.getDaySegmentContainer = function() { return daySegmentContainer };
//   t.getSlotSegmentContainer = function() { return slotSegmentContainer };
//   t.getMinMinute = function() { return minMinute };
//   t.getMaxMinute = function() { return maxMinute };
//   t.getSlotContainer = function() { return slotContainer };
//   t.getRowCnt = function() { return 1 };
//   t.getColCnt = function() { return colCnt };
//   t.getColWidth = function() { return colWidth };
//   t.getSnapHeight = function() { return snapHeight };
//   t.getSnapMinutes = function() { return snapMinutes };
//   t.defaultSelectionEnd = defaultSelectionEnd;
//   t.renderDayOverlay = renderDayOverlay;
//   t.renderSelection = renderSelection;
//   t.clearSelection = clearSelection;
//   t.reportDayClick = reportDayClick; // selection mousedown hack
//   t.dragStart = dragStart;
//   t.dragStop = dragStop;
  
  
//   // imports
//   View.call(t, element, calendar, viewName);
//   OverlayManager.call(t);
//   SelectionManager.call(t);
//   AgendaEventRenderer.call(t);
//   var opt = t.opt;
//   var trigger = t.trigger;
//   var renderOverlay = t.renderOverlay;
//   var clearOverlays = t.clearOverlays;
//   var reportSelection = t.reportSelection;
//   var unselect = t.unselect;
//   var daySelectionMousedown = t.daySelectionMousedown;
//   var slotSegHtml = t.slotSegHtml;
//   var cellToDate = t.cellToDate;
//   var dateToCell = t.dateToCell;
//   var rangeToSegments = t.rangeToSegments;
//   var formatDate = calendar.formatDate;
  
  
//   // locals
  
//   var dayTable;
//   var dayHead;
//   var dayHeadCells;
//   var dayBody;
//   var dayBodyCells;
//   var dayBodyCellInners;
//   var dayBodyCellContentInners;
//   var dayBodyFirstCell;
//   var dayBodyFirstCellStretcher;
//   var slotLayer;
//   var daySegmentContainer;
//   var allDayTable;
//   var allDayRow;
//   var slotScroller;
//   var slotContainer;
//   var slotSegmentContainer;
//   var slotTable;
//   var selectionHelper;
  
//   var viewWidth;
//   var viewHeight;
//   var axisWidth;
//   var colWidth;
//   var gutterWidth;
//   var slotHeight; // TODO: what if slotHeight changes? (see issue 650)

//   var snapMinutes;
//   var snapRatio; // ratio of number of "selection" slots to normal slots. (ex: 1, 2, 4)
//   var snapHeight; // holds the pixel hight of a "selection" slot
  
//   var colCnt;
//   var slotCnt;
//   var coordinateGrid;
//   var hoverListener;
//   var colPositions;
//   var colContentPositions;
//   var slotTopCache = {};
  
//   var tm;
//   var rtl;
//   var minMinute, maxMinute;
//   var colFormat;
//   var showWeekNumbers;
//   var weekNumberTitle;
//   var weekNumberFormat;
  

  
//   /* Rendering
//   -----------------------------------------------------------------------------*/
  
  
//   disableTextSelection(element.addClass('fc-agenda'));
  
  
//   function renderAgenda(c) {
//       colCnt = c;
//       updateOptions();

//       if (!dayTable) { // first time rendering?
//           buildSkeleton(); // builds day table, slot area, events containers
//       }
//       else {
//           buildDayTable(); // rebuilds day table
//       }
//   }
  
  
//   function updateOptions() {

//       tm = opt('theme') ? 'ui' : 'fc';
//       rtl = opt('isRTL')
//       minMinute = parseTime(opt('minTime'));
//       maxMinute = parseTime(opt('maxTime'));
//       colFormat = opt('columnFormat');

//       // week # options. (TODO: bad, logic also in other views)
//       showWeekNumbers = opt('weekNumbers');
//       weekNumberTitle = opt('weekNumberTitle');
//       if (opt('weekNumberCalculation') != 'iso') {
//           weekNumberFormat = "w";
//       }
//       else {
//           weekNumberFormat = "W";
//       }

//       snapMinutes = opt('snapMinutes') || opt('slotMinutes');
//   }



//   /* Build DOM
//   -----------------------------------------------------------------------*/


//   function buildSkeleton() {
//       var headerClass = tm + "-widget-header";
//       var contentClass = tm + "-widget-content";
//       var s;
//       var d;
//       var i;
//       var maxd;
//       var minutes;
//       var slotNormal = opt('slotMinutes') % 15 == 0;
      
//       buildDayTable();
      
//       slotLayer =
//           $("<div style='position:absolute;z-index:2;left:0;width:100%'/>")
//               .appendTo(element);
              
//       if (opt('allDaySlot')) {
      
//           daySegmentContainer =
//               $("<div class='fc-event-container' style='position:absolute;z-index:8;top:0;left:0'/>")
//                   .appendTo(slotLayer);
      
//           s =
//               "<table style='width:100%' class='fc-agenda-allday' cellspacing='0'>" +
//               "<tr>" +
//               "<th class='" + headerClass + " fc-agenda-axis'>" + opt('allDayText') + "</th>" +
//               "<td>" +
//               "<div class='fc-day-content'><div style='position:relative'/></div>" +
//               "</td>" +
//               "<th class='" + headerClass + " fc-agenda-gutter'>&nbsp;</th>" +
//               "</tr>" +
//               "</table>";
//           allDayTable = $(s).appendTo(slotLayer);
//           allDayRow = allDayTable.find('tr');
          
//           dayBind(allDayRow.find('td'));
          
//           slotLayer.append(
//               "<div class='fc-agenda-divider " + headerClass + "'>" +
//               "<div class='fc-agenda-divider-inner'/>" +
//               "</div>"
//           );
          
//       }else{
      
//           daySegmentContainer = $([]); // in jQuery 1.4, we can just do $()
      
//       }
      
//       slotScroller =
//           $("<div style='position:absolute;width:100%;overflow-x:hidden;overflow-y:auto'/>")
//               .appendTo(slotLayer);
              
//       slotContainer =
//           $("<div style='position:relative;width:100%;overflow:hidden'/>")
//               .appendTo(slotScroller);
              
//       slotSegmentContainer =
//           $("<div class='fc-event-container' style='position:absolute;z-index:8;top:0;left:0'/>")
//               .appendTo(slotContainer);
      
//       s =
//           "<table class='fc-agenda-slots' style='width:100%' cellspacing='0'>" +
//           "<tbody>";
//       d = zeroDate();
//       maxd = addMinutes(cloneDate(d), maxMinute);
//       addMinutes(d, minMinute);
//       slotCnt = 0;
//       for (i=0; d < maxd; i++) {
//           minutes = d.getMinutes();
//           s +=
//               "<tr class='fc-slot" + i + ' ' + (!minutes ? '' : 'fc-minor') + "'>" +
//               "<th class='fc-agenda-axis " + headerClass + "'>" +
//               ((!slotNormal || !minutes) ? formatDate(d, opt('axisFormat')) : '&nbsp;') +
//               "</th>" +
//               "<td class='" + contentClass + "'>" +
//               "<div style='position:relative'>&nbsp;</div>" +
//               "</td>" +
//               "</tr>";
//           addMinutes(d, opt('slotMinutes'));
//           slotCnt++;
//       }
//       s +=
//           "</tbody>" +
//           "</table>";
//       slotTable = $(s).appendTo(slotContainer);
      
//       slotBind(slotTable.find('td'));
//   }



//   /* Build Day Table
//   -----------------------------------------------------------------------*/


//   function buildDayTable() {
//       var html = buildDayTableHTML();

//       if (dayTable) {
//           dayTable.remove();
//       }
//       dayTable = $(html).appendTo(element);

//       dayHead = dayTable.find('thead');
//       dayHeadCells = dayHead.find('th').slice(1, -1); // exclude gutter
//       dayBody = dayTable.find('tbody');
//       dayBodyCells = dayBody.find('td').slice(0, -1); // exclude gutter
//       dayBodyCellInners = dayBodyCells.find('> div');
//       dayBodyCellContentInners = dayBodyCells.find('.fc-day-content > div');

//       dayBodyFirstCell = dayBodyCells.eq(0);
//       dayBodyFirstCellStretcher = dayBodyCellInners.eq(0);
      
//       markFirstLast(dayHead.add(dayHead.find('tr')));
//       markFirstLast(dayBody.add(dayBody.find('tr')));

//       // TODO: now that we rebuild the cells every time, we should call dayRender
//   }


//   function buildDayTableHTML() {
//       var html =
//           "<table style='width:100%' class='fc-agenda-days fc-border-separate' cellspacing='0'>" +
//           buildDayTableHeadHTML() +
//           buildDayTableBodyHTML() +
//           "</table>";

//       return html;
//   }


//   function buildDayTableHeadHTML() {
//       var headerClass = tm + "-widget-header";
//       var date;
//       var html = '';
//       var weekText;
//       var col;

//       html +=
//           "<thead>" +
//           "<tr>";

//       if (showWeekNumbers) {
//           date = cellToDate(0, 0);
//           weekText = formatDate(date, weekNumberFormat);
//           if (rtl) {
//               weekText += weekNumberTitle;
//           }
//           else {
//               weekText = weekNumberTitle + weekText;
//           }
//           html +=
//               "<th class='fc-agenda-axis fc-week-number " + headerClass + "'>" +
//               htmlEscape(weekText) +
//               "</th>";
//       }
//       else {
//           html += "<th class='fc-agenda-axis " + headerClass + "'>&nbsp;</th>";
//       }

//       for (col=0; col<colCnt; col++) {
//           date = cellToDate(0, col);
//           html +=
//               "<th class='fc-" + dayIDs[date.getDay()] + " fc-col" + col + ' ' + headerClass + "'>" +
//               htmlEscape(formatDate(date, colFormat)) +
//               "</th>";
//       }

//       html +=
//           "<th class='fc-agenda-gutter " + headerClass + "'>&nbsp;</th>" +
//           "</tr>" +
//           "</thead>";

//       return html;
//   }


//   function buildDayTableBodyHTML() {
//       var headerClass = tm + "-widget-header"; // TODO: make these when updateOptions() called
//       var contentClass = tm + "-widget-content";
//       var date;
//       var today = clearTime(new Date());
//       var col;
//       var cellsHTML;
//       var cellHTML;
//       var classNames;
//       var html = '';

//       html +=
//           "<tbody>" +
//           "<tr>" +
//           "<th class='fc-agenda-axis " + headerClass + "'>&nbsp;</th>";

//       cellsHTML = '';

//       for (col=0; col<colCnt; col++) {

//           date = cellToDate(0, col);

//           classNames = [
//               'fc-col' + col,
//               'fc-' + dayIDs[date.getDay()],
//               contentClass
//           ];
//           if (+date == +today) {
//               classNames.push(
//                   tm + '-state-highlight',
//                   'fc-today'
//               );
//           }
//           else if (date < today) {
//               classNames.push('fc-past');
//           }
//           else {
//               classNames.push('fc-future');
//           }

//           cellHTML =
//               "<td class='" + classNames.join(' ') + "'>" +
//               "<div>" +
//               "<div class='fc-day-content'>" +
//               "<div style='position:relative'>&nbsp;</div>" +
//               "</div>" +
//               "</div>" +
//               "</td>";

//           cellsHTML += cellHTML;
//       }

//       html += cellsHTML;
//       html +=
//           "<td class='fc-agenda-gutter " + contentClass + "'>&nbsp;</td>" +
//           "</tr>" +
//           "</tbody>";

//       return html;
//   }


//   // TODO: data-date on the cells

  
  
//   /* Dimensions
//   -----------------------------------------------------------------------*/

  
//   function setHeight(height) {
//       if (height === undefined) {
//           height = viewHeight;
//       }
//       viewHeight = height;
//       slotTopCache = {};
  
//       var headHeight = dayBody.position().top;
//       var allDayHeight = slotScroller.position().top; // including divider
//       var bodyHeight = Math.min( // total body height, including borders
//           height - headHeight,   // when scrollbars
//           slotTable.height() + allDayHeight + 1 // when no scrollbars. +1 for bottom border
//       );

//       dayBodyFirstCellStretcher
//           .height(bodyHeight - vsides(dayBodyFirstCell));
      
//       slotLayer.css('top', headHeight);
      
//       slotScroller.height(bodyHeight - allDayHeight - 1);
      
//       // the stylesheet guarantees that the first row has no border.
//       // this allows .height() to work well cross-browser.
//       slotHeight = slotTable.find('tr:first').height() + 1; // +1 for bottom border

//       snapRatio = opt('slotMinutes') / snapMinutes;
//       snapHeight = slotHeight / snapRatio;
//   }
  
  
//   function setWidth(width) {
//       viewWidth = width;
//       colPositions.clear();
//       colContentPositions.clear();

//       var axisFirstCells = dayHead.find('th:first');
//       if (allDayTable) {
//           axisFirstCells = axisFirstCells.add(allDayTable.find('th:first'));
//       }
//       axisFirstCells = axisFirstCells.add(slotTable.find('th:first'));
      
//       axisWidth = 0;
//       setOuterWidth(
//           axisFirstCells
//               .width('')
//               .each(function(i, _cell) {
//                   axisWidth = Math.max(axisWidth, $(_cell).outerWidth());
//               }),
//           axisWidth
//       );
      
//       var gutterCells = dayTable.find('.fc-agenda-gutter');
//       if (allDayTable) {
//           gutterCells = gutterCells.add(allDayTable.find('th.fc-agenda-gutter'));
//       }

//       var slotTableWidth = slotScroller[0].clientWidth; // needs to be done after axisWidth (for IE7)
      
//       gutterWidth = slotScroller.width() - slotTableWidth;
//       if (gutterWidth) {
//           setOuterWidth(gutterCells, gutterWidth);
//           gutterCells
//               .show()
//               .prev()
//               .removeClass('fc-last');
//       }else{
//           gutterCells
//               .hide()
//               .prev()
//               .addClass('fc-last');
//       }
      
//       colWidth = Math.floor((slotTableWidth - axisWidth) / colCnt);
//       setOuterWidth(dayHeadCells.slice(0, -1), colWidth);
//   }
  


//   /* Scrolling
//   -----------------------------------------------------------------------*/


//   function resetScroll() {
//       var d0 = zeroDate();
//       var scrollDate = cloneDate(d0);
//       scrollDate.setHours(opt('firstHour'));
//       var top = timePosition(d0, scrollDate) + 1; // +1 for the border
//       function scroll() {
//           slotScroller.scrollTop(top);
//       }
//       scroll();
//       setTimeout(scroll, 0); // overrides any previous scroll state made by the browser
//   }


//   function afterRender() { // after the view has been freshly rendered and sized
//       resetScroll();
//   }
  
  
  
//   /* Slot/Day clicking and binding
//   -----------------------------------------------------------------------*/
  

//   function dayBind(cells) {
//       cells.click(slotClick)
//           .mousedown(daySelectionMousedown);
//   }


//   function slotBind(cells) {
//       cells.click(slotClick)
//           .mousedown(slotSelectionMousedown);
//   }
  
  
//   function slotClick(ev) {
//       if (!opt('selectable')) { // if selectable, SelectionManager will worry about dayClick
//           var col = Math.min(colCnt-1, Math.floor((ev.pageX - dayTable.offset().left - axisWidth) / colWidth));
//           var date = cellToDate(0, col);
//           var rowMatch = this.parentNode.className.match(/fc-slot(\d+)/); // TODO: maybe use data
//           if (rowMatch) {
//               var mins = parseInt(rowMatch[1]) * opt('slotMinutes');
//               var hours = Math.floor(mins/60);
//               date.setHours(hours);
//               date.setMinutes(mins%60 + minMinute);
//               trigger('dayClick', dayBodyCells[col], date, false, ev);
//           }else{
//               trigger('dayClick', dayBodyCells[col], date, true, ev);
//           }
//       }
//   }
  
  
  
//   /* Semi-transparent Overlay Helpers
//   -----------------------------------------------------*/
//   // TODO: should be consolidated with BasicView's methods


//   function renderDayOverlay(overlayStart, overlayEnd, refreshCoordinateGrid) { // overlayEnd is exclusive

//       if (refreshCoordinateGrid) {
//           coordinateGrid.build();
//       }

//       var segments = rangeToSegments(overlayStart, overlayEnd);

//       for (var i=0; i<segments.length; i++) {
//           var segment = segments[i];
//           dayBind(
//               renderCellOverlay(
//                   segment.row,
//                   segment.leftCol,
//                   segment.row,
//                   segment.rightCol
//               )
//           );
//       }
//   }
  
  
//   function renderCellOverlay(row0, col0, row1, col1) { // only for all-day?
//       var rect = coordinateGrid.rect(row0, col0, row1, col1, slotLayer);
//       return renderOverlay(rect, slotLayer);
//   }
  

//   function renderSlotOverlay(overlayStart, overlayEnd) {
//       for (var i=0; i<colCnt; i++) {
//           var dayStart = cellToDate(0, i);
//           var dayEnd = addDays(cloneDate(dayStart), 1);
//           var stretchStart = new Date(Math.max(dayStart, overlayStart));
//           var stretchEnd = new Date(Math.min(dayEnd, overlayEnd));
//           if (stretchStart < stretchEnd) {
//               var rect = coordinateGrid.rect(0, i, 0, i, slotContainer); // only use it for horizontal coords
//               var top = timePosition(dayStart, stretchStart);
//               var bottom = timePosition(dayStart, stretchEnd);
//               rect.top = top;
//               rect.height = bottom - top;
//               slotBind(
//                   renderOverlay(rect, slotContainer)
//               );
//           }
//       }
//   }
  
  
  
//   /* Coordinate Utilities
//   -----------------------------------------------------------------------------*/
  
  
//   coordinateGrid = new CoordinateGrid(function(rows, cols) {
//       var e, n, p;
//       dayHeadCells.each(function(i, _e) {
//           e = $(_e);
//           n = e.offset().left;
//           if (i) {
//               p[1] = n;
//           }
//           p = [n];
//           cols[i] = p;
//       });
//       p[1] = n + e.outerWidth();
//       if (opt('allDaySlot')) {
//           e = allDayRow;
//           n = e.offset().top;
//           rows[0] = [n, n+e.outerHeight()];
//       }
//       var slotTableTop = slotContainer.offset().top;
//       var slotScrollerTop = slotScroller.offset().top;
//       var slotScrollerBottom = slotScrollerTop + slotScroller.outerHeight();
//       function constrain(n) {
//           return Math.max(slotScrollerTop, Math.min(slotScrollerBottom, n));
//       }
//       for (var i=0; i<slotCnt*snapRatio; i++) { // adapt slot count to increased/decreased selection slot count
//           rows.push([
//               constrain(slotTableTop + snapHeight*i),
//               constrain(slotTableTop + snapHeight*(i+1))
//           ]);
//       }
//   });
  
  
//   hoverListener = new HoverListener(coordinateGrid);
  
//   colPositions = new HorizontalPositionCache(function(col) {
//       return dayBodyCellInners.eq(col);
//   });
  
//   colContentPositions = new HorizontalPositionCache(function(col) {
//       return dayBodyCellContentInners.eq(col);
//   });
  
  
//   function colLeft(col) {
//       return colPositions.left(col);
//   }


//   function colContentLeft(col) {
//       return colContentPositions.left(col);
//   }


//   function colRight(col) {
//       return colPositions.right(col);
//   }
  
  
//   function colContentRight(col) {
//       return colContentPositions.right(col);
//   }


//   function getIsCellAllDay(cell) {
//       return opt('allDaySlot') && !cell.row;
//   }


//   function realCellToDate(cell) { // ugh "real" ... but blame it on our abuse of the "cell" system
//       var d = cellToDate(0, cell.col);
//       var slotIndex = cell.row;
//       if (opt('allDaySlot')) {
//           slotIndex--;
//       }
//       if (slotIndex >= 0) {
//           addMinutes(d, minMinute + slotIndex * snapMinutes);
//       }
//       return d;
//   }
  
  
//   // get the Y coordinate of the given time on the given day (both Date objects)
//   function timePosition(day, time) { // both date objects. day holds 00:00 of current day
//       day = cloneDate(day, true);
//       if (time < addMinutes(cloneDate(day), minMinute)) {
//           return 0;
//       }
//       if (time >= addMinutes(cloneDate(day), maxMinute)) {
//           return slotTable.height();
//       }
//       var slotMinutes = opt('slotMinutes'),
//           minutes = time.getHours()*60 + time.getMinutes() - minMinute,
//           slotI = Math.floor(minutes / slotMinutes),
//           slotTop = slotTopCache[slotI];
//       if (slotTop === undefined) {
//           slotTop = slotTopCache[slotI] =
//               slotTable.find('tr').eq(slotI).find('td div')[0].offsetTop;
//               // .eq() is faster than ":eq()" selector
//               // [0].offsetTop is faster than .position().top (do we really need this optimization?)
//               // a better optimization would be to cache all these divs
//       }
//       return Math.max(0, Math.round(
//           slotTop - 1 + slotHeight * ((minutes % slotMinutes) / slotMinutes)
//       ));
//   }
  
  
//   function getAllDayRow(index) {
//       return allDayRow;
//   }
  
  
//   function defaultEventEnd(event) {
//       var start = cloneDate(event.start);
//       if (event.allDay) {
//           return start;
//       }
//       return addMinutes(start, opt('defaultEventMinutes'));
//   }
  
  
  
//   /* Selection
//   ---------------------------------------------------------------------------------*/
  
  
//   function defaultSelectionEnd(startDate, allDay) {
//       if (allDay) {
//           return cloneDate(startDate);
//       }
//       return addMinutes(cloneDate(startDate), opt('slotMinutes'));
//   }
  
  
//   function renderSelection(startDate, endDate, allDay) { // only for all-day
//       if (allDay) {
//           if (opt('allDaySlot')) {
//               renderDayOverlay(startDate, addDays(cloneDate(endDate), 1), true);
//           }
//       }else{
//           renderSlotSelection(startDate, endDate);
//       }
//   }
  
  
//   function renderSlotSelection(startDate, endDate) {
//       var helperOption = opt('selectHelper');
//       coordinateGrid.build();
//       if (helperOption) {
//           var col = dateToCell(startDate).col;
//           if (col >= 0 && col < colCnt) { // only works when times are on same day
//               var rect = coordinateGrid.rect(0, col, 0, col, slotContainer); // only for horizontal coords
//               var top = timePosition(startDate, startDate);
//               var bottom = timePosition(startDate, endDate);
//               if (bottom > top) { // protect against selections that are entirely before or after visible range
//                   rect.top = top;
//                   rect.height = bottom - top;
//                   rect.left += 2;
//                   rect.width -= 5;
//                   if ($.isFunction(helperOption)) {
//                       var helperRes = helperOption(startDate, endDate);
//                       if (helperRes) {
//                           rect.position = 'absolute';
//                           selectionHelper = $(helperRes)
//                               .css(rect)
//                               .appendTo(slotContainer);
//                       }
//                   }else{
//                       rect.isStart = true; // conside rect a "seg" now
//                       rect.isEnd = true;   //
//                       selectionHelper = $(slotSegHtml(
//                           {
//                               title: '',
//                               start: startDate,
//                               end: endDate,
//                               className: ['fc-select-helper'],
//                               editable: false
//                           },
//                           rect
//                       ));
//                       selectionHelper.css('opacity', opt('dragOpacity'));
//                   }
//                   if (selectionHelper) {
//                       slotBind(selectionHelper);
//                       slotContainer.append(selectionHelper);
//                       setOuterWidth(selectionHelper, rect.width, true); // needs to be after appended
//                       setOuterHeight(selectionHelper, rect.height, true);
//                   }
//               }
//           }
//       }else{
//           renderSlotOverlay(startDate, endDate);
//       }
//   }
  
  
//   function clearSelection() {
//       clearOverlays();
//       if (selectionHelper) {
//           selectionHelper.remove();
//           selectionHelper = null;
//       }
//   }
  
  
//   function slotSelectionMousedown(ev) {
//       if (ev.which == 1 && opt('selectable')) { // ev.which==1 means left mouse button
//           unselect(ev);
//           var dates;
//           hoverListener.start(function(cell, origCell) {
//               clearSelection();
//               if (cell && cell.col == origCell.col && !getIsCellAllDay(cell)) {
//                   var d1 = realCellToDate(origCell);
//                   var d2 = realCellToDate(cell);
//                   dates = [
//                       d1,
//                       addMinutes(cloneDate(d1), snapMinutes), // calculate minutes depending on selection slot minutes 
//                       d2,
//                       addMinutes(cloneDate(d2), snapMinutes)
//                   ].sort(dateCompare);
//                   renderSlotSelection(dates[0], dates[3]);
//               }else{
//                   dates = null;
//               }
//           }, ev);
//           $(document).one('mouseup', function(ev) {
//               hoverListener.stop();
//               if (dates) {
//                   if (+dates[0] == +dates[1]) {
//                       reportDayClick(dates[0], false, ev);
//                   }
//                   reportSelection(dates[0], dates[3], false, ev);
//               }
//           });
//       }
//   }


//   function reportDayClick(date, allDay, ev) {
//       trigger('dayClick', dayBodyCells[dateToCell(date).col], date, allDay, ev);
//   }
  
  
  
//   /* External Dragging
//   --------------------------------------------------------------------------------*/
  
  
//   function dragStart(_dragElement, ev, ui) {
//       hoverListener.start(function(cell) {
//           clearOverlays();
//           if (cell) {
//               if (getIsCellAllDay(cell)) {
//                   renderCellOverlay(cell.row, cell.col, cell.row, cell.col);
//               }else{
//                   var d1 = realCellToDate(cell);
//                   var d2 = addMinutes(cloneDate(d1), opt('defaultEventMinutes'));
//                   renderSlotOverlay(d1, d2);
//               }
//           }
//       }, ev);
//   }
  
  
//   function dragStop(_dragElement, ev, ui) {
//       var cell = hoverListener.stop();
//       clearOverlays();
//       if (cell) {
//           trigger('drop', _dragElement, realCellToDate(cell), getIsCellAllDay(cell), ev, ui);
//       }
//   }
  

// }

// ;;

// function AgendaEventRenderer() {
//   var t = this;
  
  
//   // exports
//   t.renderEvents = renderEvents;
//   t.clearEvents = clearEvents;
//   t.slotSegHtml = slotSegHtml;
  
  
//   // imports
//   DayEventRenderer.call(t);
//   var opt = t.opt;
//   var trigger = t.trigger;
//   var isEventDraggable = t.isEventDraggable;
//   var isEventResizable = t.isEventResizable;
//   var eventEnd = t.eventEnd;
//   var eventElementHandlers = t.eventElementHandlers;
//   var setHeight = t.setHeight;
//   var getDaySegmentContainer = t.getDaySegmentContainer;
//   var getSlotSegmentContainer = t.getSlotSegmentContainer;
//   var getHoverListener = t.getHoverListener;
//   var getMaxMinute = t.getMaxMinute;
//   var getMinMinute = t.getMinMinute;
//   var timePosition = t.timePosition;
//   var getIsCellAllDay = t.getIsCellAllDay;
//   var colContentLeft = t.colContentLeft;
//   var colContentRight = t.colContentRight;
//   var cellToDate = t.cellToDate;
//   var getColCnt = t.getColCnt;
//   var getColWidth = t.getColWidth;
//   var getSnapHeight = t.getSnapHeight;
//   var getSnapMinutes = t.getSnapMinutes;
//   var getSlotContainer = t.getSlotContainer;
//   var reportEventElement = t.reportEventElement;
//   var showEvents = t.showEvents;
//   var hideEvents = t.hideEvents;
//   var eventDrop = t.eventDrop;
//   var eventResize = t.eventResize;
//   var renderDayOverlay = t.renderDayOverlay;
//   var clearOverlays = t.clearOverlays;
//   var renderDayEvents = t.renderDayEvents;
//   var calendar = t.calendar;
//   var formatDate = calendar.formatDate;
//   var formatDates = calendar.formatDates;


//   // overrides
//   t.draggableDayEvent = draggableDayEvent;

  
  
//   /* Rendering
//   ----------------------------------------------------------------------------*/
  

//   function renderEvents(events, modifiedEventId) {
//       var i, len=events.length,
//           dayEvents=[],
//           slotEvents=[];
//       for (i=0; i<len; i++) {
//           if (events[i].allDay) {
//               dayEvents.push(events[i]);
//           }else{
//               slotEvents.push(events[i]);
//           }
//       }

//       if (opt('allDaySlot')) {
//           renderDayEvents(dayEvents, modifiedEventId);
//           setHeight(); // no params means set to viewHeight
//       }

//       renderSlotSegs(compileSlotSegs(slotEvents), modifiedEventId);
//   }
  
  
//   function clearEvents() {
//       getDaySegmentContainer().empty();
//       getSlotSegmentContainer().empty();
//   }

  
//   function compileSlotSegs(events) {
//       var colCnt = getColCnt(),
//           minMinute = getMinMinute(),
//           maxMinute = getMaxMinute(),
//           d,
//           visEventEnds = $.map(events, slotEventEnd),
//           i,
//           j, seg,
//           colSegs,
//           segs = [];

//       for (i=0; i<colCnt; i++) {

//           d = cellToDate(0, i);
//           addMinutes(d, minMinute);

//           colSegs = sliceSegs(
//               events,
//               visEventEnds,
//               d,
//               addMinutes(cloneDate(d), maxMinute-minMinute)
//           );

//           colSegs = placeSlotSegs(colSegs); // returns a new order

//           for (j=0; j<colSegs.length; j++) {
//               seg = colSegs[j];
//               seg.col = i;
//               segs.push(seg);
//           }
//       }

//       return segs;
//   }


//   function sliceSegs(events, visEventEnds, start, end) {
//       var segs = [],
//           i, len=events.length, event,
//           eventStart, eventEnd,
//           segStart, segEnd,
//           isStart, isEnd;
//       for (i=0; i<len; i++) {
//           event = events[i];
//           eventStart = event.start;
//           eventEnd = visEventEnds[i];
//           if (eventEnd > start && eventStart < end) {
//               if (eventStart < start) {
//                   segStart = cloneDate(start);
//                   isStart = false;
//               }else{
//                   segStart = eventStart;
//                   isStart = true;
//               }
//               if (eventEnd > end) {
//                   segEnd = cloneDate(end);
//                   isEnd = false;
//               }else{
//                   segEnd = eventEnd;
//                   isEnd = true;
//               }
//               segs.push({
//                   event: event,
//                   start: segStart,
//                   end: segEnd,
//                   isStart: isStart,
//                   isEnd: isEnd
//               });
//           }
//       }
//       return segs.sort(compareSlotSegs);
//   }


//   function slotEventEnd(event) {
//       if (event.end) {
//           return cloneDate(event.end);
//       }else{
//           return addMinutes(cloneDate(event.start), opt('defaultEventMinutes'));
//       }
//   }
  
  
//   // renders events in the 'time slots' at the bottom
//   // TODO: when we refactor this, when user returns `false` eventRender, don't have empty space
//   // TODO: refactor will include using pixels to detect collisions instead of dates (handy for seg cmp)
  
//   function renderSlotSegs(segs, modifiedEventId) {
  
//       var i, segCnt=segs.length, seg,
//           event,
//           top,
//           bottom,
//           columnLeft,
//           columnRight,
//           columnWidth,
//           width,
//           left,
//           right,
//           html = '',
//           eventElements,
//           eventElement,
//           triggerRes,
//           titleElement,
//           height,
//           slotSegmentContainer = getSlotSegmentContainer(),
//           isRTL = opt('isRTL');
          
//       // calculate position/dimensions, create html
//       for (i=0; i<segCnt; i++) {
//           seg = segs[i];
//           event = seg.event;
//           top = timePosition(seg.start, seg.start);
//           bottom = timePosition(seg.start, seg.end);
//           columnLeft = colContentLeft(seg.col);
//           columnRight = colContentRight(seg.col);
//           columnWidth = columnRight - columnLeft;

//           // shave off space on right near scrollbars (2.5%)
//           // TODO: move this to CSS somehow
//           columnRight -= columnWidth * .025;
//           columnWidth = columnRight - columnLeft;

//           width = columnWidth * (seg.forwardCoord - seg.backwardCoord);

//           if (opt('slotEventOverlap')) {
//               // double the width while making sure resize handle is visible
//               // (assumed to be 20px wide)
//               width = Math.max(
//                   (width - (20/2)) * 2,
//                   width // narrow columns will want to make the segment smaller than
//                       // the natural width. don't allow it
//               );
//           }

//           if (isRTL) {
//               right = columnRight - seg.backwardCoord * columnWidth;
//               left = right - width;
//           }
//           else {
//               left = columnLeft + seg.backwardCoord * columnWidth;
//               right = left + width;
//           }

//           // make sure horizontal coordinates are in bounds
//           left = Math.max(left, columnLeft);
//           right = Math.min(right, columnRight);
//           width = right - left;

//           seg.top = top;
//           seg.left = left;
//           seg.outerWidth = width;
//           seg.outerHeight = bottom - top;
//           html += slotSegHtml(event, seg);
//       }

//       slotSegmentContainer[0].innerHTML = html; // faster than html()
//       eventElements = slotSegmentContainer.children();
      
//       // retrieve elements, run through eventRender callback, bind event handlers
//       for (i=0; i<segCnt; i++) {
//           seg = segs[i];
//           event = seg.event;
//           eventElement = $(eventElements[i]); // faster than eq()
//           triggerRes = trigger('eventRender', event, event, eventElement);
//           if (triggerRes === false) {
//               eventElement.remove();
//           }else{
//               if (triggerRes && triggerRes !== true) {
//                   eventElement.remove();
//                   eventElement = $(triggerRes)
//                       .css({
//                           position: 'absolute',
//                           top: seg.top,
//                           left: seg.left
//                       })
//                       .appendTo(slotSegmentContainer);
//               }
//               seg.element = eventElement;
//               if (event._id === modifiedEventId) {
//                   bindSlotSeg(event, eventElement, seg);
//               }else{
//                   eventElement[0]._fci = i; // for lazySegBind
//               }
//               reportEventElement(event, eventElement);
//           }
//       }
      
//       lazySegBind(slotSegmentContainer, segs, bindSlotSeg);
      
//       // record event sides and title positions
//       for (i=0; i<segCnt; i++) {
//           seg = segs[i];
//           if (eventElement = seg.element) {
//               seg.vsides = vsides(eventElement, true);
//               seg.hsides = hsides(eventElement, true);
//               titleElement = eventElement.find('.fc-event-title');
//               if (titleElement.length) {
//                   seg.contentTop = titleElement[0].offsetTop;
//               }
//           }
//       }
      
//       // set all positions/dimensions at once
//       for (i=0; i<segCnt; i++) {
//           seg = segs[i];
//           if (eventElement = seg.element) {
//               eventElement[0].style.width = Math.max(0, seg.outerWidth - seg.hsides) + 'px';
//               height = Math.max(0, seg.outerHeight - seg.vsides);
//               eventElement[0].style.height = height + 'px';
//               event = seg.event;
//               if (seg.contentTop !== undefined && height - seg.contentTop < 10) {
//                   // not enough room for title, put it in the time (TODO: maybe make both display:inline instead)
//                   eventElement.find('div.fc-event-time')
//                       .text(formatDate(event.start, opt('timeFormat')) + ' - ' + event.title);
//                   eventElement.find('div.fc-event-title')
//                       .remove();
//               }
//               trigger('eventAfterRender', event, event, eventElement);
//           }
//       }
                  
//   }
  
  
//   function slotSegHtml(event, seg) {
//       var html = "<";
//       var url = event.url;
//       var skinCss = getSkinCss(event, opt);
//       var classes = ['fc-event', 'fc-event-vert'];
//       if (isEventDraggable(event)) {
//           classes.push('fc-event-draggable');
//       }
//       if (seg.isStart) {
//           classes.push('fc-event-start');
//       }
//       if (seg.isEnd) {
//           classes.push('fc-event-end');
//       }
//       classes = classes.concat(event.className);
//       if (event.source) {
//           classes = classes.concat(event.source.className || []);
//       }
//       if (url) {
//           html += "a href='" + htmlEscape(event.url) + "'";
//       }else{
//           html += "div";
//       }
//       html +=
//           " class='" + classes.join(' ') + "'" +
//           " style=" +
//               "'" +
//               "position:absolute;" +
//               "top:" + seg.top + "px;" +
//               "left:" + seg.left + "px;" +
//               skinCss +
//               "'" +
//           ">" +
//           "<div class='fc-event-inner'>" +
//           "<div class='fc-event-time'>" +
//           htmlEscape(formatDates(event.start, event.end, opt('timeFormat'))) +
//           "</div>" +
//           "<div class='fc-event-title'>" +
//           htmlEscape(event.title || '') +
//           "</div>" +
//           "</div>" +
//           "<div class='fc-event-bg'></div>";
//       if (seg.isEnd && isEventResizable(event)) {
//           html +=
//               "<div class='ui-resizable-handle ui-resizable-s'>=</div>";
//       }
//       html +=
//           "</" + (url ? "a" : "div") + ">";
//       return html;
//   }
  
  
//   function bindSlotSeg(event, eventElement, seg) {
//       var timeElement = eventElement.find('div.fc-event-time');
//       if (isEventDraggable(event)) {
//           draggableSlotEvent(event, eventElement, timeElement);
//       }
//       if (seg.isEnd && isEventResizable(event)) {
//           resizableSlotEvent(event, eventElement, timeElement);
//       }
//       eventElementHandlers(event, eventElement);
//   }
  
  
  
//   /* Dragging
//   -----------------------------------------------------------------------------------*/
  
  
//   // when event starts out FULL-DAY
//   // overrides DayEventRenderer's version because it needs to account for dragging elements
//   // to and from the slot area.
  
//   function draggableDayEvent(event, eventElement, seg) {
//       var isStart = seg.isStart;
//       var origWidth;
//       var revert;
//       var allDay = true;
//       var dayDelta;
//       var hoverListener = getHoverListener();
//       var colWidth = getColWidth();
//       var snapHeight = getSnapHeight();
//       var snapMinutes = getSnapMinutes();
//       var minMinute = getMinMinute();
//       eventElement.draggable({
//           opacity: opt('dragOpacity', 'month'), // use whatever the month view was using
//           revertDuration: opt('dragRevertDuration'),
//           start: function(ev, ui) {
//               trigger('eventDragStart', eventElement, event, ev, ui);
//               hideEvents(event, eventElement);
//               origWidth = eventElement.width();
//               hoverListener.start(function(cell, origCell) {
//                   clearOverlays();
//                   if (cell) {
//                       revert = false;
//                       var origDate = cellToDate(0, origCell.col);
//                       var date = cellToDate(0, cell.col);
//                       dayDelta = dayDiff(date, origDate);
//                       if (!cell.row) {
//                           // on full-days
//                           renderDayOverlay(
//                               addDays(cloneDate(event.start), dayDelta),
//                               addDays(exclEndDay(event), dayDelta)
//                           );
//                           resetElement();
//                       }else{
//                           // mouse is over bottom slots
//                           if (isStart) {
//                               if (allDay) {
//                                   // convert event to temporary slot-event
//                                   eventElement.width(colWidth - 10); // don't use entire width
//                                   setOuterHeight(
//                                       eventElement,
//                                       snapHeight * Math.round(
//                                           (event.end ? ((event.end - event.start) / MINUTE_MS) : opt('defaultEventMinutes')) /
//                                               snapMinutes
//                                       )
//                                   );
//                                   eventElement.draggable('option', 'grid', [colWidth, 1]);
//                                   allDay = false;
//                               }
//                           }else{
//                               revert = true;
//                           }
//                       }
//                       revert = revert || (allDay && !dayDelta);
//                   }else{
//                       resetElement();
//                       revert = true;
//                   }
//                   eventElement.draggable('option', 'revert', revert);
//               }, ev, 'drag');
//           },
//           stop: function(ev, ui) {
//               hoverListener.stop();
//               clearOverlays();
//               trigger('eventDragStop', eventElement, event, ev, ui);
//               if (revert) {
//                   // hasn't moved or is out of bounds (draggable has already reverted)
//                   resetElement();
//                   eventElement.css('filter', ''); // clear IE opacity side-effects
//                   showEvents(event, eventElement);
//               }else{
//                   // changed!
//                   var minuteDelta = 0;
//                   if (!allDay) {
//                       minuteDelta = Math.round((eventElement.offset().top - getSlotContainer().offset().top) / snapHeight)
//                           * snapMinutes
//                           + minMinute
//                           - (event.start.getHours() * 60 + event.start.getMinutes());
//                   }
//                   eventDrop(this, event, dayDelta, minuteDelta, allDay, ev, ui);
//               }
//           }
//       });
//       function resetElement() {
//           if (!allDay) {
//               eventElement
//                   .width(origWidth)
//                   .height('')
//                   .draggable('option', 'grid', null);
//               allDay = true;
//           }
//       }
//   }
  
  
//   // when event starts out IN TIMESLOTS
  
//   function draggableSlotEvent(event, eventElement, timeElement) {
//       var coordinateGrid = t.getCoordinateGrid();
//       var colCnt = getColCnt();
//       var colWidth = getColWidth();
//       var snapHeight = getSnapHeight();
//       var snapMinutes = getSnapMinutes();

//       // states
//       var origPosition; // original position of the element, not the mouse
//       var origCell;
//       var isInBounds, prevIsInBounds;
//       var isAllDay, prevIsAllDay;
//       var colDelta, prevColDelta;
//       var dayDelta; // derived from colDelta
//       var minuteDelta, prevMinuteDelta;

//       eventElement.draggable({
//           scroll: false,
//           grid: [ colWidth, snapHeight ],
//           axis: colCnt==1 ? 'y' : false,
//           opacity: opt('dragOpacity'),
//           revertDuration: opt('dragRevertDuration'),
//           start: function(ev, ui) {

//               trigger('eventDragStart', eventElement, event, ev, ui);
//               hideEvents(event, eventElement);

//               coordinateGrid.build();

//               // initialize states
//               origPosition = eventElement.position();
//               origCell = coordinateGrid.cell(ev.pageX, ev.pageY);
//               isInBounds = prevIsInBounds = true;
//               isAllDay = prevIsAllDay = getIsCellAllDay(origCell);
//               colDelta = prevColDelta = 0;
//               dayDelta = 0;
//               minuteDelta = prevMinuteDelta = 0;

//           },
//           drag: function(ev, ui) {

//               // NOTE: this `cell` value is only useful for determining in-bounds and all-day.
//               // Bad for anything else due to the discrepancy between the mouse position and the
//               // element position while snapping. (problem revealed in PR #55)
//               //
//               // PS- the problem exists for draggableDayEvent() when dragging an all-day event to a slot event.
//               // We should overhaul the dragging system and stop relying on jQuery UI.
//               var cell = coordinateGrid.cell(ev.pageX, ev.pageY);

//               // update states
//               isInBounds = !!cell;
//               if (isInBounds) {
//                   isAllDay = getIsCellAllDay(cell);

//                   // calculate column delta
//                   colDelta = Math.round((ui.position.left - origPosition.left) / colWidth);
//                   if (colDelta != prevColDelta) {
//                       // calculate the day delta based off of the original clicked column and the column delta
//                       var origDate = cellToDate(0, origCell.col);
//                       var col = origCell.col + colDelta;
//                       col = Math.max(0, col);
//                       col = Math.min(colCnt-1, col);
//                       var date = cellToDate(0, col);
//                       dayDelta = dayDiff(date, origDate);
//                   }

//                   // calculate minute delta (only if over slots)
//                   if (!isAllDay) {
//                       minuteDelta = Math.round((ui.position.top - origPosition.top) / snapHeight) * snapMinutes;
//                   }
//               }

//               // any state changes?
//               if (
//                   isInBounds != prevIsInBounds ||
//                   isAllDay != prevIsAllDay ||
//                   colDelta != prevColDelta ||
//                   minuteDelta != prevMinuteDelta
//               ) {

//                   updateUI();

//                   // update previous states for next time
//                   prevIsInBounds = isInBounds;
//                   prevIsAllDay = isAllDay;
//                   prevColDelta = colDelta;
//                   prevMinuteDelta = minuteDelta;
//               }

//               // if out-of-bounds, revert when done, and vice versa.
//               eventElement.draggable('option', 'revert', !isInBounds);

//           },
//           stop: function(ev, ui) {

//               clearOverlays();
//               trigger('eventDragStop', eventElement, event, ev, ui);

//               if (isInBounds && (isAllDay || dayDelta || minuteDelta)) { // changed!
//                   eventDrop(this, event, dayDelta, isAllDay ? 0 : minuteDelta, isAllDay, ev, ui);
//               }
//               else { // either no change or out-of-bounds (draggable has already reverted)

//                   // reset states for next time, and for updateUI()
//                   isInBounds = true;
//                   isAllDay = false;
//                   colDelta = 0;
//                   dayDelta = 0;
//                   minuteDelta = 0;

//                   updateUI();
//                   eventElement.css('filter', ''); // clear IE opacity side-effects

//                   // sometimes fast drags make event revert to wrong position, so reset.
//                   // also, if we dragged the element out of the area because of snapping,
//                   // but the *mouse* is still in bounds, we need to reset the position.
//                   eventElement.css(origPosition);

//                   showEvents(event, eventElement);
//               }
//           }
//       });

//       function updateUI() {
//           clearOverlays();
//           if (isInBounds) {
//               if (isAllDay) {
//                   timeElement.hide();
//                   eventElement.draggable('option', 'grid', null); // disable grid snapping
//                   renderDayOverlay(
//                       addDays(cloneDate(event.start), dayDelta),
//                       addDays(exclEndDay(event), dayDelta)
//                   );
//               }
//               else {
//                   updateTimeText(minuteDelta);
//                   timeElement.css('display', ''); // show() was causing display=inline
//                   eventElement.draggable('option', 'grid', [colWidth, snapHeight]); // re-enable grid snapping
//               }
//           }
//       }

//       function updateTimeText(minuteDelta) {
//           var newStart = addMinutes(cloneDate(event.start), minuteDelta);
//           var newEnd;
//           if (event.end) {
//               newEnd = addMinutes(cloneDate(event.end), minuteDelta);
//           }
//           timeElement.text(formatDates(newStart, newEnd, opt('timeFormat')));
//       }

//   }
  
  
  
//   /* Resizing
//   --------------------------------------------------------------------------------------*/
  
  
//   function resizableSlotEvent(event, eventElement, timeElement) {
//       var snapDelta, prevSnapDelta;
//       var snapHeight = getSnapHeight();
//       var snapMinutes = getSnapMinutes();
//       eventElement.resizable({
//           handles: {
//               s: '.ui-resizable-handle'
//           },
//           grid: snapHeight,
//           start: function(ev, ui) {
//               snapDelta = prevSnapDelta = 0;
//               hideEvents(event, eventElement);
//               trigger('eventResizeStart', this, event, ev, ui);
//           },
//           resize: function(ev, ui) {
//               // don't rely on ui.size.height, doesn't take grid into account
//               snapDelta = Math.round((Math.max(snapHeight, eventElement.height()) - ui.originalSize.height) / snapHeight);
//               if (snapDelta != prevSnapDelta) {
//                   timeElement.text(
//                       formatDates(
//                           event.start,
//                           (!snapDelta && !event.end) ? null : // no change, so don't display time range
//                               addMinutes(eventEnd(event), snapMinutes*snapDelta),
//                           opt('timeFormat')
//                       )
//                   );
//                   prevSnapDelta = snapDelta;
//               }
//           },
//           stop: function(ev, ui) {
//               trigger('eventResizeStop', this, event, ev, ui);
//               if (snapDelta) {
//                   eventResize(this, event, 0, snapMinutes*snapDelta, ev, ui);
//               }else{
//                   showEvents(event, eventElement);
//                   // BUG: if event was really short, need to put title back in span
//               }
//           }
//       });
//   }
  

// }



// /* Agenda Event Segment Utilities
// -----------------------------------------------------------------------------*/


// // Sets the seg.backwardCoord and seg.forwardCoord on each segment and returns a new
// // list in the order they should be placed into the DOM (an implicit z-index).
// function placeSlotSegs(segs) {
//   var levels = buildSlotSegLevels(segs);
//   var level0 = levels[0];
//   var i;

//   computeForwardSlotSegs(levels);

//   if (level0) {

//       for (i=0; i<level0.length; i++) {
//           computeSlotSegPressures(level0[i]);
//       }

//       for (i=0; i<level0.length; i++) {
//           computeSlotSegCoords(level0[i], 0, 0);
//       }
//   }

//   return flattenSlotSegLevels(levels);
// }


// // Builds an array of segments "levels". The first level will be the leftmost tier of segments
// // if the calendar is left-to-right, or the rightmost if the calendar is right-to-left.
// function buildSlotSegLevels(segs) {
//   var levels = [];
//   var i, seg;
//   var j;

//   for (i=0; i<segs.length; i++) {
//       seg = segs[i];

//       // go through all the levels and stop on the first level where there are no collisions
//       for (j=0; j<levels.length; j++) {
//           if (!computeSlotSegCollisions(seg, levels[j]).length) {
//               break;
//           }
//       }

//       (levels[j] || (levels[j] = [])).push(seg);
//   }

//   return levels;
// }


// // For every segment, figure out the other segments that are in subsequent
// // levels that also occupy the same vertical space. Accumulate in seg.forwardSegs
// function computeForwardSlotSegs(levels) {
//   var i, level;
//   var j, seg;
//   var k;

//   for (i=0; i<levels.length; i++) {
//       level = levels[i];

//       for (j=0; j<level.length; j++) {
//           seg = level[j];

//           seg.forwardSegs = [];
//           for (k=i+1; k<levels.length; k++) {
//               computeSlotSegCollisions(seg, levels[k], seg.forwardSegs);
//           }
//       }
//   }
// }


// // Figure out which path forward (via seg.forwardSegs) results in the longest path until
// // the furthest edge is reached. The number of segments in this path will be seg.forwardPressure
// function computeSlotSegPressures(seg) {
//   var forwardSegs = seg.forwardSegs;
//   var forwardPressure = 0;
//   var i, forwardSeg;

//   if (seg.forwardPressure === undefined) { // not already computed

//       for (i=0; i<forwardSegs.length; i++) {
//           forwardSeg = forwardSegs[i];

//           // figure out the child's maximum forward path
//           computeSlotSegPressures(forwardSeg);

//           // either use the existing maximum, or use the child's forward pressure
//           // plus one (for the forwardSeg itself)
//           forwardPressure = Math.max(
//               forwardPressure,
//               1 + forwardSeg.forwardPressure
//           );
//       }

//       seg.forwardPressure = forwardPressure;
//   }
// }


// // Calculate seg.forwardCoord and seg.backwardCoord for the segment, where both values range
// // from 0 to 1. If the calendar is left-to-right, the seg.backwardCoord maps to "left" and
// // seg.forwardCoord maps to "right" (via percentage). Vice-versa if the calendar is right-to-left.
// //
// // The segment might be part of a "series", which means consecutive segments with the same pressure
// // who's width is unknown until an edge has been hit. `seriesBackwardPressure` is the number of
// // segments behind this one in the current series, and `seriesBackwardCoord` is the starting
// // coordinate of the first segment in the series.
// function computeSlotSegCoords(seg, seriesBackwardPressure, seriesBackwardCoord) {
//   var forwardSegs = seg.forwardSegs;
//   var i;

//   if (seg.forwardCoord === undefined) { // not already computed

//       if (!forwardSegs.length) {

//           // if there are no forward segments, this segment should butt up against the edge
//           seg.forwardCoord = 1;
//       }
//       else {

//           // sort highest pressure first
//           forwardSegs.sort(compareForwardSlotSegs);

//           // this segment's forwardCoord will be calculated from the backwardCoord of the
//           // highest-pressure forward segment.
//           computeSlotSegCoords(forwardSegs[0], seriesBackwardPressure + 1, seriesBackwardCoord);
//           seg.forwardCoord = forwardSegs[0].backwardCoord;
//       }

//       // calculate the backwardCoord from the forwardCoord. consider the series
//       seg.backwardCoord = seg.forwardCoord -
//           (seg.forwardCoord - seriesBackwardCoord) / // available width for series
//           (seriesBackwardPressure + 1); // # of segments in the series

//       // use this segment's coordinates to computed the coordinates of the less-pressurized
//       // forward segments
//       for (i=0; i<forwardSegs.length; i++) {
//           computeSlotSegCoords(forwardSegs[i], 0, seg.forwardCoord);
//       }
//   }
// }


// // Outputs a flat array of segments, from lowest to highest level
// function flattenSlotSegLevels(levels) {
//   var segs = [];
//   var i, level;
//   var j;

//   for (i=0; i<levels.length; i++) {
//       level = levels[i];

//       for (j=0; j<level.length; j++) {
//           segs.push(level[j]);
//       }
//   }

//   return segs;
// }


// // Find all the segments in `otherSegs` that vertically collide with `seg`.
// // Append into an optionally-supplied `results` array and return.
// function computeSlotSegCollisions(seg, otherSegs, results) {
//   results = results || [];

//   for (var i=0; i<otherSegs.length; i++) {
//       if (isSlotSegCollision(seg, otherSegs[i])) {
//           results.push(otherSegs[i]);
//       }
//   }

//   return results;
// }


// // Do these segments occupy the same vertical space?
// function isSlotSegCollision(seg1, seg2) {
//   return seg1.end > seg2.start && seg1.start < seg2.end;
// }


// // A cmp function for determining which forward segment to rely on more when computing coordinates.
// function compareForwardSlotSegs(seg1, seg2) {
//   // put higher-pressure first
//   return seg2.forwardPressure - seg1.forwardPressure ||
//       // put segments that are closer to initial edge first (and favor ones with no coords yet)
//       (seg1.backwardCoord || 0) - (seg2.backwardCoord || 0) ||
//       // do normal sorting...
//       compareSlotSegs(seg1, seg2);
// }


// // A cmp function for determining which segment should be closer to the initial edge
// // (the left edge on a left-to-right calendar).
// function compareSlotSegs(seg1, seg2) {
//   return seg1.start - seg2.start || // earlier start time goes first
//       (seg2.end - seg2.start) - (seg1.end - seg1.start) || // tie? longer-duration goes first
//       (seg1.event.title || '').localeCompare(seg2.event.title); // tie? alphabetically by title
// }


// ;;


// function View(element, calendar, viewName) {
//   var t = this;
  
  
//   // exports
//   t.element = element;
//   t.calendar = calendar;
//   t.name = viewName;
//   t.opt = opt;
//   t.trigger = trigger;
//   t.isEventDraggable = isEventDraggable;
//   t.isEventResizable = isEventResizable;
//   t.setEventData = setEventData;
//   t.clearEventData = clearEventData;
//   t.eventEnd = eventEnd;
//   t.reportEventElement = reportEventElement;
//   t.triggerEventDestroy = triggerEventDestroy;
//   t.eventElementHandlers = eventElementHandlers;
//   t.showEvents = showEvents;
//   t.hideEvents = hideEvents;
//   t.eventDrop = eventDrop;
//   t.eventResize = eventResize;
//   // t.title
//   // t.start, t.end
//   // t.visStart, t.visEnd
  
  
//   // imports
//   var defaultEventEnd = t.defaultEventEnd;
//   var normalizeEvent = calendar.normalizeEvent; // in EventManager
//   var reportEventChange = calendar.reportEventChange;
  
  
//   // locals
//   var eventsByID = {}; // eventID mapped to array of events (there can be multiple b/c of repeating events)
//   var eventElementsByID = {}; // eventID mapped to array of jQuery elements
//   var eventElementCouples = []; // array of objects, { event, element } // TODO: unify with segment system
//   var options = calendar.options;
  
  
  
//   function opt(name, viewNameOverride) {
//       var v = options[name];
//       if ($.isPlainObject(v)) {
//           return smartProperty(v, viewNameOverride || viewName);
//       }
//       return v;
//   }

  
//   function trigger(name, thisObj) {
//       return calendar.trigger.apply(
//           calendar,
//           [name, thisObj || t].concat(Array.prototype.slice.call(arguments, 2), [t])
//       );
//   }
  


//   /* Event Editable Boolean Calculations
//   ------------------------------------------------------------------------------*/

  
//   function isEventDraggable(event) {
//       var source = event.source || {};
//       return firstDefined(
//               event.startEditable,
//               source.startEditable,
//               opt('eventStartEditable'),
//               event.editable,
//               source.editable,
//               opt('editable')
//           )
//           && !opt('disableDragging'); // deprecated
//   }
  
  
//   function isEventResizable(event) { // but also need to make sure the seg.isEnd == true
//       var source = event.source || {};
//       return firstDefined(
//               event.durationEditable,
//               source.durationEditable,
//               opt('eventDurationEditable'),
//               event.editable,
//               source.editable,
//               opt('editable')
//           )
//           && !opt('disableResizing'); // deprecated
//   }
  
  
  
//   /* Event Data
//   ------------------------------------------------------------------------------*/
  
  
//   function setEventData(events) { // events are already normalized at this point
//       eventsByID = {};
//       var i, len=events.length, event;
//       for (i=0; i<len; i++) {
//           event = events[i];
//           if (eventsByID[event._id]) {
//               eventsByID[event._id].push(event);
//           }else{
//               eventsByID[event._id] = [event];
//           }
//       }
//   }


//   function clearEventData() {
//       eventsByID = {};
//       eventElementsByID = {};
//       eventElementCouples = [];
//   }
  
  
//   // returns a Date object for an event's end
//   function eventEnd(event) {
//       return event.end ? cloneDate(event.end) : defaultEventEnd(event);
//   }
  
  
  
//   /* Event Elements
//   ------------------------------------------------------------------------------*/
  
  
//   // report when view creates an element for an event
//   function reportEventElement(event, element) {
//       eventElementCouples.push({ event: event, element: element });
//       if (eventElementsByID[event._id]) {
//           eventElementsByID[event._id].push(element);
//       }else{
//           eventElementsByID[event._id] = [element];
//       }
//   }


//   function triggerEventDestroy() {
//       $.each(eventElementCouples, function(i, couple) {
//           t.trigger('eventDestroy', couple.event, couple.event, couple.element);
//       });
//   }
  
  
//   // attaches eventClick, eventMouseover, eventMouseout
//   function eventElementHandlers(event, eventElement) {
//       eventElement
//           .click(function(ev) {
//               if (!eventElement.hasClass('ui-draggable-dragging') &&
//                   !eventElement.hasClass('ui-resizable-resizing')) {
//                       return trigger('eventClick', this, event, ev);
//                   }
//           })
//           .hover(
//               function(ev) {
//                   trigger('eventMouseover', this, event, ev);
//               },
//               function(ev) {
//                   trigger('eventMouseout', this, event, ev);
//               }
//           );
//       // TODO: don't fire eventMouseover/eventMouseout *while* dragging is occuring (on subject element)
//       // TODO: same for resizing
//   }
  
  
//   function showEvents(event, exceptElement) {
//       eachEventElement(event, exceptElement, 'show');
//   }
  
  
//   function hideEvents(event, exceptElement) {
//       eachEventElement(event, exceptElement, 'hide');
//   }
  
  
//   function eachEventElement(event, exceptElement, funcName) {
//       // NOTE: there may be multiple events per ID (repeating events)
//       // and multiple segments per event
//       var elements = eventElementsByID[event._id],
//           i, len = elements.length;
//       for (i=0; i<len; i++) {
//           if (!exceptElement || elements[i][0] != exceptElement[0]) {
//               elements[i][funcName]();
//           }
//       }
//   }
  
  
  
//   /* Event Modification Reporting
//   ---------------------------------------------------------------------------------*/
  
  
//   function eventDrop(e, event, dayDelta, minuteDelta, allDay, ev, ui) {
//       var oldAllDay = event.allDay;
//       var eventId = event._id;
//       moveEvents(eventsByID[eventId], dayDelta, minuteDelta, allDay);
//       trigger(
//           'eventDrop',
//           e,
//           event,
//           dayDelta,
//           minuteDelta,
//           allDay,
//           function() {
//               // TODO: investigate cases where this inverse technique might not work
//               moveEvents(eventsByID[eventId], -dayDelta, -minuteDelta, oldAllDay);
//               reportEventChange(eventId);
//           },
//           ev,
//           ui
//       );
//       reportEventChange(eventId);
//   }
  
  
//   function eventResize(e, event, dayDelta, minuteDelta, ev, ui) {
//       var eventId = event._id;
//       elongateEvents(eventsByID[eventId], dayDelta, minuteDelta);
//       trigger(
//           'eventResize',
//           e,
//           event,
//           dayDelta,
//           minuteDelta,
//           function() {
//               // TODO: investigate cases where this inverse technique might not work
//               elongateEvents(eventsByID[eventId], -dayDelta, -minuteDelta);
//               reportEventChange(eventId);
//           },
//           ev,
//           ui
//       );
//       reportEventChange(eventId);
//   }
  
  
  
//   /* Event Modification Math
//   ---------------------------------------------------------------------------------*/
  
  
//   function moveEvents(events, dayDelta, minuteDelta, allDay) {
//       minuteDelta = minuteDelta || 0;
//       for (var e, len=events.length, i=0; i<len; i++) {
//           e = events[i];
//           if (allDay !== undefined) {
//               e.allDay = allDay;
//           }
//           addMinutes(addDays(e.start, dayDelta, true), minuteDelta);
//           if (e.end) {
//               e.end = addMinutes(addDays(e.end, dayDelta, true), minuteDelta);
//           }
//           normalizeEvent(e, options);
//       }
//   }
  
  
//   function elongateEvents(events, dayDelta, minuteDelta) {
//       minuteDelta = minuteDelta || 0;
//       for (var e, len=events.length, i=0; i<len; i++) {
//           e = events[i];
//           e.end = addMinutes(addDays(eventEnd(e), dayDelta, true), minuteDelta);
//           normalizeEvent(e, options);
//       }
//   }



//   // ====================================================================================================
//   // Utilities for day "cells"
//   // ====================================================================================================
//   // The "basic" views are completely made up of day cells.
//   // The "agenda" views have day cells at the top "all day" slot.
//   // This was the obvious common place to put these utilities, but they should be abstracted out into
//   // a more meaningful class (like DayEventRenderer).
//   // ====================================================================================================


//   // For determining how a given "cell" translates into a "date":
//   //
//   // 1. Convert the "cell" (row and column) into a "cell offset" (the # of the cell, cronologically from the first).
//   //    Keep in mind that column indices are inverted with isRTL. This is taken into account.
//   //
//   // 2. Convert the "cell offset" to a "day offset" (the # of days since the first visible day in the view).
//   //
//   // 3. Convert the "day offset" into a "date" (a JavaScript Date object).
//   //
//   // The reverse transformation happens when transforming a date into a cell.


//   // exports
//   t.isHiddenDay = isHiddenDay;
//   t.skipHiddenDays = skipHiddenDays;
//   t.getCellsPerWeek = getCellsPerWeek;
//   t.dateToCell = dateToCell;
//   t.dateToDayOffset = dateToDayOffset;
//   t.dayOffsetToCellOffset = dayOffsetToCellOffset;
//   t.cellOffsetToCell = cellOffsetToCell;
//   t.cellToDate = cellToDate;
//   t.cellToCellOffset = cellToCellOffset;
//   t.cellOffsetToDayOffset = cellOffsetToDayOffset;
//   t.dayOffsetToDate = dayOffsetToDate;
//   t.rangeToSegments = rangeToSegments;


//   // internals
//   var hiddenDays = opt('hiddenDays') || []; // array of day-of-week indices that are hidden
//   var isHiddenDayHash = []; // is the day-of-week hidden? (hash with day-of-week-index -> bool)
//   var cellsPerWeek;
//   var dayToCellMap = []; // hash from dayIndex -> cellIndex, for one week
//   var cellToDayMap = []; // hash from cellIndex -> dayIndex, for one week
//   var isRTL = opt('isRTL');


//   // initialize important internal variables
//   (function() {

//       if (opt('weekends') === false) {
//           hiddenDays.push(0, 6); // 0=sunday, 6=saturday
//       }

//       // Loop through a hypothetical week and determine which
//       // days-of-week are hidden. Record in both hashes (one is the reverse of the other).
//       for (var dayIndex=0, cellIndex=0; dayIndex<7; dayIndex++) {
//           dayToCellMap[dayIndex] = cellIndex;
//           isHiddenDayHash[dayIndex] = $.inArray(dayIndex, hiddenDays) != -1;
//           if (!isHiddenDayHash[dayIndex]) {
//               cellToDayMap[cellIndex] = dayIndex;
//               cellIndex++;
//           }
//       }

//       cellsPerWeek = cellIndex;
//       if (!cellsPerWeek) {
//           throw 'invalid hiddenDays'; // all days were hidden? bad.
//       }

//   })();


//   // Is the current day hidden?
//   // `day` is a day-of-week index (0-6), or a Date object
//   function isHiddenDay(day) {
//       if (typeof day == 'object') {
//           day = day.getDay();
//       }
//       return isHiddenDayHash[day];
//   }


//   function getCellsPerWeek() {
//       return cellsPerWeek;
//   }


//   // Keep incrementing the current day until it is no longer a hidden day.
//   // If the initial value of `date` is not a hidden day, don't do anything.
//   // Pass `isExclusive` as `true` if you are dealing with an end date.
//   // `inc` defaults to `1` (increment one day forward each time)
//   function skipHiddenDays(date, inc, isExclusive) {
//       inc = inc || 1;
//       while (
//           isHiddenDayHash[ ( date.getDay() + (isExclusive ? inc : 0) + 7 ) % 7 ]
//       ) {
//           addDays(date, inc);
//       }
//   }


//   //
//   // TRANSFORMATIONS: cell -> cell offset -> day offset -> date
//   //

//   // cell -> date (combines all transformations)
//   // Possible arguments:
//   // - row, col
//   // - { row:#, col: # }
//   function cellToDate() {
//       var cellOffset = cellToCellOffset.apply(null, arguments);
//       var dayOffset = cellOffsetToDayOffset(cellOffset);
//       var date = dayOffsetToDate(dayOffset);
//       return date;
//   }

//   // cell -> cell offset
//   // Possible arguments:
//   // - row, col
//   // - { row:#, col:# }
//   function cellToCellOffset(row, col) {
//       var colCnt = t.getColCnt();

//       // rtl variables. wish we could pre-populate these. but where?
//       var dis = isRTL ? -1 : 1;
//       var dit = isRTL ? colCnt - 1 : 0;

//       if (typeof row == 'object') {
//           col = row.col;
//           row = row.row;
//       }
//       var cellOffset = row * colCnt + (col * dis + dit); // column, adjusted for RTL (dis & dit)

//       return cellOffset;
//   }

//   // cell offset -> day offset
//   function cellOffsetToDayOffset(cellOffset) {
//       var day0 = t.visStart.getDay(); // first date's day of week
//       cellOffset += dayToCellMap[day0]; // normlize cellOffset to beginning-of-week
//       return Math.floor(cellOffset / cellsPerWeek) * 7 // # of days from full weeks
//           + cellToDayMap[ // # of days from partial last week
//               (cellOffset % cellsPerWeek + cellsPerWeek) % cellsPerWeek // crazy math to handle negative cellOffsets
//           ]
//           - day0; // adjustment for beginning-of-week normalization
//   }

//   // day offset -> date (JavaScript Date object)
//   function dayOffsetToDate(dayOffset) {
//       var date = cloneDate(t.visStart);
//       addDays(date, dayOffset);
//       return date;
//   }


//   //
//   // TRANSFORMATIONS: date -> day offset -> cell offset -> cell
//   //

//   // date -> cell (combines all transformations)
//   function dateToCell(date) {
//       var dayOffset = dateToDayOffset(date);
//       var cellOffset = dayOffsetToCellOffset(dayOffset);
//       var cell = cellOffsetToCell(cellOffset);
//       return cell;
//   }

//   // date -> day offset
//   function dateToDayOffset(date) {
//       return dayDiff(date, t.visStart);
//   }

//   // day offset -> cell offset
//   function dayOffsetToCellOffset(dayOffset) {
//       var day0 = t.visStart.getDay(); // first date's day of week
//       dayOffset += day0; // normalize dayOffset to beginning-of-week
//       return Math.floor(dayOffset / 7) * cellsPerWeek // # of cells from full weeks
//           + dayToCellMap[ // # of cells from partial last week
//               (dayOffset % 7 + 7) % 7 // crazy math to handle negative dayOffsets
//           ]
//           - dayToCellMap[day0]; // adjustment for beginning-of-week normalization
//   }

//   // cell offset -> cell (object with row & col keys)
//   function cellOffsetToCell(cellOffset) {
//       var colCnt = t.getColCnt();

//       // rtl variables. wish we could pre-populate these. but where?
//       var dis = isRTL ? -1 : 1;
//       var dit = isRTL ? colCnt - 1 : 0;

//       var row = Math.floor(cellOffset / colCnt);
//       var col = ((cellOffset % colCnt + colCnt) % colCnt) * dis + dit; // column, adjusted for RTL (dis & dit)
//       return {
//           row: row,
//           col: col
//       };
//   }


//   //
//   // Converts a date range into an array of segment objects.
//   // "Segments" are horizontal stretches of time, sliced up by row.
//   // A segment object has the following properties:
//   // - row
//   // - cols
//   // - isStart
//   // - isEnd
//   //
//   function rangeToSegments(startDate, endDate) {
//       var rowCnt = t.getRowCnt();
//       var colCnt = t.getColCnt();
//       var segments = []; // array of segments to return

//       // day offset for given date range
//       var rangeDayOffsetStart = dateToDayOffset(startDate);
//       var rangeDayOffsetEnd = dateToDayOffset(endDate); // exclusive

//       // first and last cell offset for the given date range
//       // "last" implies inclusivity
//       var rangeCellOffsetFirst = dayOffsetToCellOffset(rangeDayOffsetStart);
//       var rangeCellOffsetLast = dayOffsetToCellOffset(rangeDayOffsetEnd) - 1;

//       // loop through all the rows in the view
//       for (var row=0; row<rowCnt; row++) {

//           // first and last cell offset for the row
//           var rowCellOffsetFirst = row * colCnt;
//           var rowCellOffsetLast = rowCellOffsetFirst + colCnt - 1;

//           // get the segment's cell offsets by constraining the range's cell offsets to the bounds of the row
//           var segmentCellOffsetFirst = Math.max(rangeCellOffsetFirst, rowCellOffsetFirst);
//           var segmentCellOffsetLast = Math.min(rangeCellOffsetLast, rowCellOffsetLast);

//           // make sure segment's offsets are valid and in view
//           if (segmentCellOffsetFirst <= segmentCellOffsetLast) {

//               // translate to cells
//               var segmentCellFirst = cellOffsetToCell(segmentCellOffsetFirst);
//               var segmentCellLast = cellOffsetToCell(segmentCellOffsetLast);

//               // view might be RTL, so order by leftmost column
//               var cols = [ segmentCellFirst.col, segmentCellLast.col ].sort();

//               // Determine if segment's first/last cell is the beginning/end of the date range.
//               // We need to compare "day offset" because "cell offsets" are often ambiguous and
//               // can translate to multiple days, and an edge case reveals itself when we the
//               // range's first cell is hidden (we don't want isStart to be true).
//               var isStart = cellOffsetToDayOffset(segmentCellOffsetFirst) == rangeDayOffsetStart;
//               var isEnd = cellOffsetToDayOffset(segmentCellOffsetLast) + 1 == rangeDayOffsetEnd; // +1 for comparing exclusively

//               segments.push({
//                   row: row,
//                   leftCol: cols[0],
//                   rightCol: cols[1],
//                   isStart: isStart,
//                   isEnd: isEnd
//               });
//           }
//       }

//       return segments;
//   }
  

// }

// ;;

// function DayEventRenderer() {
//   var t = this;

  
//   // exports
//   t.renderDayEvents = renderDayEvents;
//   t.draggableDayEvent = draggableDayEvent; // made public so that subclasses can override
//   t.resizableDayEvent = resizableDayEvent; // "
  
  
//   // imports
//   var opt = t.opt;
//   var trigger = t.trigger;
//   var isEventDraggable = t.isEventDraggable;
//   var isEventResizable = t.isEventResizable;
//   var eventEnd = t.eventEnd;
//   var reportEventElement = t.reportEventElement;
//   var eventElementHandlers = t.eventElementHandlers;
//   var showEvents = t.showEvents;
//   var hideEvents = t.hideEvents;
//   var eventDrop = t.eventDrop;
//   var eventResize = t.eventResize;
//   var getRowCnt = t.getRowCnt;
//   var getColCnt = t.getColCnt;
//   var getColWidth = t.getColWidth;
//   var allDayRow = t.allDayRow; // TODO: rename
//   var colLeft = t.colLeft;
//   var colRight = t.colRight;
//   var colContentLeft = t.colContentLeft;
//   var colContentRight = t.colContentRight;
//   var dateToCell = t.dateToCell;
//   var getDaySegmentContainer = t.getDaySegmentContainer;
//   var formatDates = t.calendar.formatDates;
//   var renderDayOverlay = t.renderDayOverlay;
//   var clearOverlays = t.clearOverlays;
//   var clearSelection = t.clearSelection;
//   var getHoverListener = t.getHoverListener;
//   var rangeToSegments = t.rangeToSegments;
//   var cellToDate = t.cellToDate;
//   var cellToCellOffset = t.cellToCellOffset;
//   var cellOffsetToDayOffset = t.cellOffsetToDayOffset;
//   var dateToDayOffset = t.dateToDayOffset;
//   var dayOffsetToCellOffset = t.dayOffsetToCellOffset;


//   // Render `events` onto the calendar, attach mouse event handlers, and call the `eventAfterRender` callback for each.
//   // Mouse event will be lazily applied, except if the event has an ID of `modifiedEventId`.
//   // Can only be called when the event container is empty (because it wipes out all innerHTML).
//   function renderDayEvents(events, modifiedEventId) {

//       // do the actual rendering. Receive the intermediate "segment" data structures.
//       var segments = _renderDayEvents(
//           events,
//           false, // don't append event elements
//           true // set the heights of the rows
//       );

//       // report the elements to the View, for general drag/resize utilities
//       segmentElementEach(segments, function(segment, element) {
//           reportEventElement(segment.event, element);
//       });

//       // attach mouse handlers
//       attachHandlers(segments, modifiedEventId);

//       // call `eventAfterRender` callback for each event
//       segmentElementEach(segments, function(segment, element) {
//           trigger('eventAfterRender', segment.event, segment.event, element);
//       });
//   }


//   // Render an event on the calendar, but don't report them anywhere, and don't attach mouse handlers.
//   // Append this event element to the event container, which might already be populated with events.
//   // If an event's segment will have row equal to `adjustRow`, then explicitly set its top coordinate to `adjustTop`.
//   // This hack is used to maintain continuity when user is manually resizing an event.
//   // Returns an array of DOM elements for the event.
//   function renderTempDayEvent(event, adjustRow, adjustTop) {

//       // actually render the event. `true` for appending element to container.
//       // Recieve the intermediate "segment" data structures.
//       var segments = _renderDayEvents(
//           [ event ],
//           true, // append event elements
//           false // don't set the heights of the rows
//       );

//       var elements = [];

//       // Adjust certain elements' top coordinates
//       segmentElementEach(segments, function(segment, element) {
//           if (segment.row === adjustRow) {
//               element.css('top', adjustTop);
//           }
//           elements.push(element[0]); // accumulate DOM nodes
//       });

//       return elements;
//   }


//   // Render events onto the calendar. Only responsible for the VISUAL aspect.
//   // Not responsible for attaching handlers or calling callbacks.
//   // Set `doAppend` to `true` for rendering elements without clearing the existing container.
//   // Set `doRowHeights` to allow setting the height of each row, to compensate for vertical event overflow.
//   function _renderDayEvents(events, doAppend, doRowHeights) {

//       // where the DOM nodes will eventually end up
//       var finalContainer = getDaySegmentContainer();

//       // the container where the initial HTML will be rendered.
//       // If `doAppend`==true, uses a temporary container.
//       var renderContainer = doAppend ? $("<div/>") : finalContainer;

//       var segments = buildSegments(events);
//       var html;
//       var elements;

//       // calculate the desired `left` and `width` properties on each segment object
//       calculateHorizontals(segments);

//       // build the HTML string. relies on `left` property
//       html = buildHTML(segments);

//       // render the HTML. innerHTML is considerably faster than jQuery's .html()
//       renderContainer[0].innerHTML = html;

//       // retrieve the individual elements
//       elements = renderContainer.children();

//       // if we were appending, and thus using a temporary container,
//       // re-attach elements to the real container.
//       if (doAppend) {
//           finalContainer.append(elements);
//       }

//       // assigns each element to `segment.event`, after filtering them through user callbacks
//       resolveElements(segments, elements);

//       // Calculate the left and right padding+margin for each element.
//       // We need this for setting each element's desired outer width, because of the W3C box model.
//       // It's important we do this in a separate pass from acually setting the width on the DOM elements
//       // because alternating reading/writing dimensions causes reflow for every iteration.
//       segmentElementEach(segments, function(segment, element) {
//           segment.hsides = hsides(element, true); // include margins = `true`
//       });

//       // Set the width of each element
//       segmentElementEach(segments, function(segment, element) {
//           element.width(
//               Math.max(0, segment.outerWidth - segment.hsides)
//           );
//       });

//       // Grab each element's outerHeight (setVerticals uses this).
//       // To get an accurate reading, it's important to have each element's width explicitly set already.
//       segmentElementEach(segments, function(segment, element) {
//           segment.outerHeight = element.outerHeight(true); // include margins = `true`
//       });

//       // Set the top coordinate on each element (requires segment.outerHeight)
//       setVerticals(segments, doRowHeights);

//       return segments;
//   }


//   // Generate an array of "segments" for all events.
//   function buildSegments(events) {
//       var segments = [];
//       for (var i=0; i<events.length; i++) {
//           var eventSegments = buildSegmentsForEvent(events[i]);
//           segments.push.apply(segments, eventSegments); // append an array to an array
//       }
//       return segments;
//   }


//   // Generate an array of segments for a single event.
//   // A "segment" is the same data structure that View.rangeToSegments produces,
//   // with the addition of the `event` property being set to reference the original event.
//   function buildSegmentsForEvent(event) {
//       var startDate = event.start;
//       var endDate = exclEndDay(event);
//       var segments = rangeToSegments(startDate, endDate);
//       for (var i=0; i<segments.length; i++) {
//           segments[i].event = event;
//       }
//       return segments;
//   }


//   // Sets the `left` and `outerWidth` property of each segment.
//   // These values are the desired dimensions for the eventual DOM elements.
//   function calculateHorizontals(segments) {
//       var isRTL = opt('isRTL');
//       for (var i=0; i<segments.length; i++) {
//           var segment = segments[i];

//           // Determine functions used for calulating the elements left/right coordinates,
//           // depending on whether the view is RTL or not.
//           // NOTE:
//           // colLeft/colRight returns the coordinate butting up the edge of the cell.
//           // colContentLeft/colContentRight is indented a little bit from the edge.
//           var leftFunc = (isRTL ? segment.isEnd : segment.isStart) ? colContentLeft : colLeft;
//           var rightFunc = (isRTL ? segment.isStart : segment.isEnd) ? colContentRight : colRight;

//           var left = leftFunc(segment.leftCol);
//           var right = rightFunc(segment.rightCol);
//           segment.left = left;
//           segment.outerWidth = right - left;
//       }
//   }


//   // Build a concatenated HTML string for an array of segments
//   function buildHTML(segments) {
//       var html = '';
//       for (var i=0; i<segments.length; i++) {
//           html += buildHTMLForSegment(segments[i]);
//       }
//       return html;
//   }


//   // Build an HTML string for a single segment.
//   // Relies on the following properties:
//   // - `segment.event` (from `buildSegmentsForEvent`)
//   // - `segment.left` (from `calculateHorizontals`)
//   function buildHTMLForSegment(segment) {
//       var html = '';
//       var isRTL = opt('isRTL');
//       var event = segment.event;
//       var url = event.url;

//       // generate the list of CSS classNames
//       var classNames = [ 'fc-event', 'fc-event-hori' ];
//       if (isEventDraggable(event)) {
//           classNames.push('fc-event-draggable');
//       }
//       if (segment.isStart) {
//           classNames.push('fc-event-start');
//       }
//       if (segment.isEnd) {
//           classNames.push('fc-event-end');
//       }
//       // use the event's configured classNames
//       // guaranteed to be an array via `normalizeEvent`
//       classNames = classNames.concat(event.className);
//       if (event.source) {
//           // use the event's source's classNames, if specified
//           classNames = classNames.concat(event.source.className || []);
//       }

//       // generate a semicolon delimited CSS string for any of the "skin" properties
//       // of the event object (`backgroundColor`, `borderColor` and such)
//       var skinCss = getSkinCss(event, opt);

//       if (url) {
//           html += "<a href='" + htmlEscape(url) + "'";
//       }else{
//           html += "<div";
//       }
//       html +=
//           " class='" + classNames.join(' ') + "'" +
//           " style=" +
//               "'" +
//               "position:absolute;" +
//               "left:" + segment.left + "px;" +
//               skinCss +
//               "'" +
//           ">" +
//           "<div class='fc-event-inner'>";
//       if (!event.allDay && segment.isStart) {
//           html +=
//               "<span class='fc-event-time'>" +
//               htmlEscape(
//                   formatDates(event.start, event.end, opt('timeFormat'))
//               ) +
//               "</span>";
//       }
//       html +=
//           "<span class='fc-event-title'>" +
//           htmlEscape(event.title || '') +
//           "</span>" +
//           "</div>";
//       if (segment.isEnd && isEventResizable(event)) {
//           html +=
//               "<div class='ui-resizable-handle ui-resizable-" + (isRTL ? 'w' : 'e') + "'>" +
//               "&nbsp;&nbsp;&nbsp;" + // makes hit area a lot better for IE6/7
//               "</div>";
//       }
//       html += "</" + (url ? "a" : "div") + ">";

//       // TODO:
//       // When these elements are initially rendered, they will be briefly visibile on the screen,
//       // even though their widths/heights are not set.
//       // SOLUTION: initially set them as visibility:hidden ?

//       return html;
//   }


//   // Associate each segment (an object) with an element (a jQuery object),
//   // by setting each `segment.element`.
//   // Run each element through the `eventRender` filter, which allows developers to
//   // modify an existing element, supply a new one, or cancel rendering.
//   function resolveElements(segments, elements) {
//       for (var i=0; i<segments.length; i++) {
//           var segment = segments[i];
//           var event = segment.event;
//           var element = elements.eq(i);

//           // call the trigger with the original element
//           var triggerRes = trigger('eventRender', event, event, element);

//           if (triggerRes === false) {
//               // if `false`, remove the event from the DOM and don't assign it to `segment.event`
//               element.remove();
//           }
//           else {
//               if (triggerRes && triggerRes !== true) {
//                   // the trigger returned a new element, but not `true` (which means keep the existing element)

//                   // re-assign the important CSS dimension properties that were already assigned in `buildHTMLForSegment`
//                   triggerRes = $(triggerRes)
//                       .css({
//                           position: 'absolute',
//                           left: segment.left
//                       });

//                   element.replaceWith(triggerRes);
//                   element = triggerRes;
//               }

//               segment.element = element;
//           }
//       }
//   }



//   /* Top-coordinate Methods
//   -------------------------------------------------------------------------------------------------*/


//   // Sets the "top" CSS property for each element.
//   // If `doRowHeights` is `true`, also sets each row's first cell to an explicit height,
//   // so that if elements vertically overflow, the cell expands vertically to compensate.
//   function setVerticals(segments, doRowHeights) {
//       var rowContentHeights = calculateVerticals(segments); // also sets segment.top
//       var rowContentElements = getRowContentElements(); // returns 1 inner div per row
//       var rowContentTops = [];

//       // Set each row's height by setting height of first inner div
//       if (doRowHeights) {
//           for (var i=0; i<rowContentElements.length; i++) {
//               rowContentElements[i].height(rowContentHeights[i]);
//           }
//       }

//       // Get each row's top, relative to the views's origin.
//       // Important to do this after setting each row's height.
//       for (var i=0; i<rowContentElements.length; i++) {
//           rowContentTops.push(
//               rowContentElements[i].position().top
//           );
//       }

//       // Set each segment element's CSS "top" property.
//       // Each segment object has a "top" property, which is relative to the row's top, but...
//       segmentElementEach(segments, function(segment, element) {
//           element.css(
//               'top',
//               rowContentTops[segment.row] + segment.top // ...now, relative to views's origin
//           );
//       });
//   }


//   // Calculate the "top" coordinate for each segment, relative to the "top" of the row.
//   // Also, return an array that contains the "content" height for each row
//   // (the height displaced by the vertically stacked events in the row).
//   // Requires segments to have their `outerHeight` property already set.
//   function calculateVerticals(segments) {
//       var rowCnt = getRowCnt();
//       var colCnt = getColCnt();
//       var rowContentHeights = []; // content height for each row
//       var segmentRows = buildSegmentRows(segments); // an array of segment arrays, one for each row

//       for (var rowI=0; rowI<rowCnt; rowI++) {
//           var segmentRow = segmentRows[rowI];

//           // an array of running total heights for each column.
//           // initialize with all zeros.
//           var colHeights = [];
//           for (var colI=0; colI<colCnt; colI++) {
//               colHeights.push(0);
//           }

//           // loop through every segment
//           for (var segmentI=0; segmentI<segmentRow.length; segmentI++) {
//               var segment = segmentRow[segmentI];

//               // find the segment's top coordinate by looking at the max height
//               // of all the columns the segment will be in.
//               segment.top = arrayMax(
//                   colHeights.slice(
//                       segment.leftCol,
//                       segment.rightCol + 1 // make exclusive for slice
//                   )
//               );

//               // adjust the columns to account for the segment's height
//               for (var colI=segment.leftCol; colI<=segment.rightCol; colI++) {
//                   colHeights[colI] = segment.top + segment.outerHeight;
//               }
//           }

//           // the tallest column in the row should be the "content height"
//           rowContentHeights.push(arrayMax(colHeights));
//       }

//       return rowContentHeights;
//   }


//   // Build an array of segment arrays, each representing the segments that will
//   // be in a row of the grid, sorted by which event should be closest to the top.
//   function buildSegmentRows(segments) {
//       var rowCnt = getRowCnt();
//       var segmentRows = [];
//       var segmentI;
//       var segment;
//       var rowI;

//       // group segments by row
//       for (segmentI=0; segmentI<segments.length; segmentI++) {
//           segment = segments[segmentI];
//           rowI = segment.row;
//           if (segment.element) { // was rendered?
//               if (segmentRows[rowI]) {
//                   // already other segments. append to array
//                   segmentRows[rowI].push(segment);
//               }
//               else {
//                   // first segment in row. create new array
//                   segmentRows[rowI] = [ segment ];
//               }
//           }
//       }

//       // sort each row
//       for (rowI=0; rowI<rowCnt; rowI++) {
//           segmentRows[rowI] = sortSegmentRow(
//               segmentRows[rowI] || [] // guarantee an array, even if no segments
//           );
//       }

//       return segmentRows;
//   }


//   // Sort an array of segments according to which segment should appear closest to the top
//   function sortSegmentRow(segments) {
//       var sortedSegments = [];

//       // build the subrow array
//       var subrows = buildSegmentSubrows(segments);

//       // flatten it
//       for (var i=0; i<subrows.length; i++) {
//           sortedSegments.push.apply(sortedSegments, subrows[i]); // append an array to an array
//       }

//       return sortedSegments;
//   }


//   // Take an array of segments, which are all assumed to be in the same row,
//   // and sort into subrows.
//   function buildSegmentSubrows(segments) {

//       // Give preference to elements with certain criteria, so they have
//       // a chance to be closer to the top.
//       segments.sort(compareDaySegments);

//       var subrows = [];
//       for (var i=0; i<segments.length; i++) {
//           var segment = segments[i];

//           // loop through subrows, starting with the topmost, until the segment
//           // doesn't collide with other segments.
//           for (var j=0; j<subrows.length; j++) {
//               if (!isDaySegmentCollision(segment, subrows[j])) {
//                   break;
//               }
//           }
//           // `j` now holds the desired subrow index
//           if (subrows[j]) {
//               subrows[j].push(segment);
//           }
//           else {
//               subrows[j] = [ segment ];
//           }
//       }

//       return subrows;
//   }


//   // Return an array of jQuery objects for the placeholder content containers of each row.
//   // The content containers don't actually contain anything, but their dimensions should match
//   // the events that are overlaid on top.
//   function getRowContentElements() {
//       var i;
//       var rowCnt = getRowCnt();
//       var rowDivs = [];
//       for (i=0; i<rowCnt; i++) {
//           rowDivs[i] = allDayRow(i)
//               .find('div.fc-day-content > div');
//       }
//       return rowDivs;
//   }



//   /* Mouse Handlers
//   ---------------------------------------------------------------------------------------------------*/
//   // TODO: better documentation!


//   function attachHandlers(segments, modifiedEventId) {
//       var segmentContainer = getDaySegmentContainer();

//       segmentElementEach(segments, function(segment, element, i) {
//           var event = segment.event;
//           if (event._id === modifiedEventId) {
//               bindDaySeg(event, element, segment);
//           }else{
//               element[0]._fci = i; // for lazySegBind
//           }
//       });

//       lazySegBind(segmentContainer, segments, bindDaySeg);
//   }


//   function bindDaySeg(event, eventElement, segment) {

//       if (isEventDraggable(event)) {
//           t.draggableDayEvent(event, eventElement, segment); // use `t` so subclasses can override
//       }

//       if (
//           segment.isEnd && // only allow resizing on the final segment for an event
//           isEventResizable(event)
//       ) {
//           t.resizableDayEvent(event, eventElement, segment); // use `t` so subclasses can override
//       }

//       // attach all other handlers.
//       // needs to be after, because resizableDayEvent might stopImmediatePropagation on click
//       eventElementHandlers(event, eventElement);
//   }

  
//   function draggableDayEvent(event, eventElement) {
//       var hoverListener = getHoverListener();
//       var dayDelta;
//       eventElement.draggable({
//           delay: 50,
//           opacity: opt('dragOpacity'),
//           revertDuration: opt('dragRevertDuration'),
//           start: function(ev, ui) {
//               trigger('eventDragStart', eventElement, event, ev, ui);
//               hideEvents(event, eventElement);
//               hoverListener.start(function(cell, origCell, rowDelta, colDelta) {
//                   eventElement.draggable('option', 'revert', !cell || !rowDelta && !colDelta);
//                   clearOverlays();
//                   if (cell) {
//                       var origDate = cellToDate(origCell);
//                       var date = cellToDate(cell);
//                       dayDelta = dayDiff(date, origDate);
//                       renderDayOverlay(
//                           addDays(cloneDate(event.start), dayDelta),
//                           addDays(exclEndDay(event), dayDelta)
//                       );
//                   }else{
//                       dayDelta = 0;
//                   }
//               }, ev, 'drag');
//           },
//           stop: function(ev, ui) {
//               hoverListener.stop();
//               clearOverlays();
//               trigger('eventDragStop', eventElement, event, ev, ui);
//               if (dayDelta) {
//                   eventDrop(this, event, dayDelta, 0, event.allDay, ev, ui);
//               }else{
//                   eventElement.css('filter', ''); // clear IE opacity side-effects
//                   showEvents(event, eventElement);
//               }
//           }
//       });
//   }

  
//   function resizableDayEvent(event, element, segment) {
//       var isRTL = opt('isRTL');
//       var direction = isRTL ? 'w' : 'e';
//       var handle = element.find('.ui-resizable-' + direction); // TODO: stop using this class because we aren't using jqui for this
//       var isResizing = false;
      
//       // TODO: look into using jquery-ui mouse widget for this stuff
//       disableTextSelection(element); // prevent native <a> selection for IE
//       element
//           .mousedown(function(ev) { // prevent native <a> selection for others
//               ev.preventDefault();
//           })
//           .click(function(ev) {
//               if (isResizing) {
//                   ev.preventDefault(); // prevent link from being visited (only method that worked in IE6)
//                   ev.stopImmediatePropagation(); // prevent fullcalendar eventClick handler from being called
//                                                  // (eventElementHandlers needs to be bound after resizableDayEvent)
//               }
//           });
      
//       handle.mousedown(function(ev) {
//           if (ev.which != 1) {
//               return; // needs to be left mouse button
//           }
//           isResizing = true;
//           var hoverListener = getHoverListener();
//           var rowCnt = getRowCnt();
//           var colCnt = getColCnt();
//           var elementTop = element.css('top');
//           var dayDelta;
//           var helpers;
//           var eventCopy = $.extend({}, event);
//           var minCellOffset = dayOffsetToCellOffset( dateToDayOffset(event.start) );
//           clearSelection();
//           $('body')
//               .css('cursor', direction + '-resize')
//               .one('mouseup', mouseup);
//           trigger('eventResizeStart', this, event, ev);
//           hoverListener.start(function(cell, origCell) {
//               if (cell) {

//                   var origCellOffset = cellToCellOffset(origCell);
//                   var cellOffset = cellToCellOffset(cell);

//                   // don't let resizing move earlier than start date cell
//                   cellOffset = Math.max(cellOffset, minCellOffset);

//                   dayDelta =
//                       cellOffsetToDayOffset(cellOffset) -
//                       cellOffsetToDayOffset(origCellOffset);

//                   if (dayDelta) {
//                       eventCopy.end = addDays(eventEnd(event), dayDelta, true);
//                       var oldHelpers = helpers;

//                       helpers = renderTempDayEvent(eventCopy, segment.row, elementTop);
//                       helpers = $(helpers); // turn array into a jQuery object

//                       helpers.find('*').css('cursor', direction + '-resize');
//                       if (oldHelpers) {
//                           oldHelpers.remove();
//                       }

//                       hideEvents(event);
//                   }
//                   else {
//                       if (helpers) {
//                           showEvents(event);
//                           helpers.remove();
//                           helpers = null;
//                       }
//                   }
//                   clearOverlays();
//                   renderDayOverlay( // coordinate grid already rebuilt with hoverListener.start()
//                       event.start,
//                       addDays( exclEndDay(event), dayDelta )
//                       // TODO: instead of calling renderDayOverlay() with dates,
//                       // call _renderDayOverlay (or whatever) with cell offsets.
//                   );
//               }
//           }, ev);
          
//           function mouseup(ev) {
//               trigger('eventResizeStop', this, event, ev);
//               $('body').css('cursor', '');
//               hoverListener.stop();
//               clearOverlays();
//               if (dayDelta) {
//                   eventResize(this, event, dayDelta, 0, ev);
//                   // event redraw will clear helpers
//               }
//               // otherwise, the drag handler already restored the old events
              
//               setTimeout(function() { // make this happen after the element's click event
//                   isResizing = false;
//               },0);
//           }
//       });
//   }
  

// }



// /* Generalized Segment Utilities
// -------------------------------------------------------------------------------------------------*/


// function isDaySegmentCollision(segment, otherSegments) {
//   for (var i=0; i<otherSegments.length; i++) {
//       var otherSegment = otherSegments[i];
//       if (
//           otherSegment.leftCol <= segment.rightCol &&
//           otherSegment.rightCol >= segment.leftCol
//       ) {
//           return true;
//       }
//   }
//   return false;
// }


// function segmentElementEach(segments, callback) { // TODO: use in AgendaView?
//   for (var i=0; i<segments.length; i++) {
//       var segment = segments[i];
//       var element = segment.element;
//       if (element) {
//           callback(segment, element, i);
//       }
//   }
// }


// // A cmp function for determining which segments should appear higher up
// function compareDaySegments(a, b) {
//   return (b.rightCol - b.leftCol) - (a.rightCol - a.leftCol) || // put wider events first
//       b.event.allDay - a.event.allDay || // if tie, put all-day events first (booleans cast to 0/1)
//       a.event.start - b.event.start || // if a tie, sort by event start date
//       (a.event.title || '').localeCompare(b.event.title) // if a tie, sort by event title
// }


// ;;

// //BUG: unselect needs to be triggered when events are dragged+dropped

// function SelectionManager() {
//   var t = this;
  
  
//   // exports
//   t.select = select;
//   t.unselect = unselect;
//   t.reportSelection = reportSelection;
//   t.daySelectionMousedown = daySelectionMousedown;
  
  
//   // imports
//   var opt = t.opt;
//   var trigger = t.trigger;
//   var defaultSelectionEnd = t.defaultSelectionEnd;
//   var renderSelection = t.renderSelection;
//   var clearSelection = t.clearSelection;
  
  
//   // locals
//   var selected = false;



//   // unselectAuto
//   if (opt('selectable') && opt('unselectAuto')) {
//       $(document).mousedown(function(ev) {
//           var ignore = opt('unselectCancel');
//           if (ignore) {
//               if ($(ev.target).parents(ignore).length) { // could be optimized to stop after first match
//                   return;
//               }
//           }
//           unselect(ev);
//       });
//   }
  

//   function select(startDate, endDate, allDay) {
//       unselect();
//       if (!endDate) {
//           endDate = defaultSelectionEnd(startDate, allDay);
//       }
//       renderSelection(startDate, endDate, allDay);
//       reportSelection(startDate, endDate, allDay);
//   }
  
  
//   function unselect(ev) {
//       if (selected) {
//           selected = false;
//           clearSelection();
//           trigger('unselect', null, ev);
//       }
//   }
  
  
//   function reportSelection(startDate, endDate, allDay, ev) {
//       selected = true;
//       trigger('select', null, startDate, endDate, allDay, ev);
//   }
  
  
//   function daySelectionMousedown(ev) { // not really a generic manager method, oh well
//       var cellToDate = t.cellToDate;
//       var getIsCellAllDay = t.getIsCellAllDay;
//       var hoverListener = t.getHoverListener();
//       var reportDayClick = t.reportDayClick; // this is hacky and sort of weird
//       if (ev.which == 1 && opt('selectable')) { // which==1 means left mouse button
//           unselect(ev);
//           var _mousedownElement = this;
//           var dates;
//           hoverListener.start(function(cell, origCell) { // TODO: maybe put cellToDate/getIsCellAllDay info in cell
//               clearSelection();
//               if (cell && getIsCellAllDay(cell)) {
//                   dates = [ cellToDate(origCell), cellToDate(cell) ].sort(dateCompare);
//                   renderSelection(dates[0], dates[1], true);
//               }else{
//                   dates = null;
//               }
//           }, ev);
//           $(document).one('mouseup', function(ev) {
//               hoverListener.stop();
//               if (dates) {
//                   if (+dates[0] == +dates[1]) {
//                       reportDayClick(dates[0], true, ev);
//                   }
//                   reportSelection(dates[0], dates[1], true, ev);
//               }
//           });
//       }
//   }


// }

// ;;

// function OverlayManager() {
//   var t = this;
  
  
//   // exports
//   t.renderOverlay = renderOverlay;
//   t.clearOverlays = clearOverlays;
  
  
//   // locals
//   var usedOverlays = [];
//   var unusedOverlays = [];
  
  
//   function renderOverlay(rect, parent) {
//       var e = unusedOverlays.shift();
//       if (!e) {
//           e = $("<div class='fc-cell-overlay' style='position:absolute;z-index:3'/>");
//       }
//       if (e[0].parentNode != parent[0]) {
//           e.appendTo(parent);
//       }
//       usedOverlays.push(e.css(rect).show());
//       return e;
//   }
  

//   function clearOverlays() {
//       var e;
//       while (e = usedOverlays.shift()) {
//           unusedOverlays.push(e.hide().unbind());
//       }
//   }


// }

// ;;

// function CoordinateGrid(buildFunc) {

//   var t = this;
//   var rows;
//   var cols;
  
  
//   t.build = function() {
//       rows = [];
//       cols = [];
//       buildFunc(rows, cols);
//   };
  
  
//   t.cell = function(x, y) {
//       var rowCnt = rows.length;
//       var colCnt = cols.length;
//       var i, r=-1, c=-1;
//       for (i=0; i<rowCnt; i++) {
//           if (y >= rows[i][0] && y < rows[i][1]) {
//               r = i;
//               break;
//           }
//       }
//       for (i=0; i<colCnt; i++) {
//           if (x >= cols[i][0] && x < cols[i][1]) {
//               c = i;
//               break;
//           }
//       }
//       return (r>=0 && c>=0) ? { row:r, col:c } : null;
//   };
  
  
//   t.rect = function(row0, col0, row1, col1, originElement) { // row1,col1 is inclusive
//       var origin = originElement.offset();
//       return {
//           top: rows[row0][0] - origin.top,
//           left: cols[col0][0] - origin.left,
//           width: cols[col1][1] - cols[col0][0],
//           height: rows[row1][1] - rows[row0][0]
//       };
//   };

// }

// ;;

// function HoverListener(coordinateGrid) {


//   var t = this;
//   var bindType;
//   var change;
//   var firstCell;
//   var cell;
  
  
//   t.start = function(_change, ev, _bindType) {
//       change = _change;
//       firstCell = cell = null;
//       coordinateGrid.build();
//       mouse(ev);
//       bindType = _bindType || 'mousemove';
//       $(document).bind(bindType, mouse);
//   };
  
  
//   function mouse(ev) {
//       _fixUIEvent(ev); // see below
//       var newCell = coordinateGrid.cell(ev.pageX, ev.pageY);
//       if (!newCell != !cell || newCell && (newCell.row != cell.row || newCell.col != cell.col)) {
//           if (newCell) {
//               if (!firstCell) {
//                   firstCell = newCell;
//               }
//               change(newCell, firstCell, newCell.row-firstCell.row, newCell.col-firstCell.col);
//           }else{
//               change(newCell, firstCell);
//           }
//           cell = newCell;
//       }
//   }
  
  
//   t.stop = function() {
//       $(document).unbind(bindType, mouse);
//       return cell;
//   };
  
  
// }



// // this fix was only necessary for jQuery UI 1.8.16 (and jQuery 1.7 or 1.7.1)
// // upgrading to jQuery UI 1.8.17 (and using either jQuery 1.7 or 1.7.1) fixed the problem
// // but keep this in here for 1.8.16 users
// // and maybe remove it down the line

// function _fixUIEvent(event) { // for issue 1168
//   if (event.pageX === undefined) {
//       event.pageX = event.originalEvent.pageX;
//       event.pageY = event.originalEvent.pageY;
//   }
// }
// ;;

// function HorizontalPositionCache(getElement) {

//   var t = this,
//       elements = {},
//       lefts = {},
//       rights = {};
      
//   function e(i) {
//       return elements[i] = elements[i] || getElement(i);
//   }
  
//   t.left = function(i) {
//       return lefts[i] = lefts[i] === undefined ? e(i).position().left : lefts[i];
//   };
  
//   t.right = function(i) {
//       return rights[i] = rights[i] === undefined ? t.left(i) + e(i).width() : rights[i];
//   };
  
//   t.clear = function() {
//       elements = {};
//       lefts = {};
//       rights = {};
//   };
  
// }

// ;;

// })(jQuery);